OU Gen 4
Legitimate Threats:
Tangrowth (being really generous)
Porygon2
Dugtrio
Crobat
Abomasnow
Cresselia
Raikou
Has a niche:
Claydol
Donphan
Hitmontop
Lanturn
Slowbro (Machamp Counter)
Spiritomb
Ambipom
Sort-of-could-do-something-in-OU:
Alakazam
Azumarril
Clefable
Chansey (Completely Outclassed)
Kabutops
Mesprit
Milotic (Completely Outclassed)
Rhyperior
Venusaur
Weezing (Gyara / Heracross counter)
Drapion
Hariyama
Moltres
Toxicroak
Heracross
PorygonZ
Wal(l)rein
Removed/Changed:
Porygon2: The best mixed counter to dragons/heatran/gyarados/jolteon and a whole lot more
Dugtrio: Trapping Pinky-Blissey was massive back then, please compare to now if you would.
Crobat: Lead Metagame and one of the highest speed-stats available.
Abomasnow: Hailstall, that's all, not to mention it could beat water types if playing it's cards right rather than the other way around.
Cresselia: One of the bulkiest CMers around, not to mention that it was actually broken to CM with Cresselia if the opponent didn't had Haze or a Phaze
Raikou: Fast CM'er, the offensive version of Suicune: one of the best pokémon last gen with it's crocune set.
Ambipom: Sure it was never great, but fake-out + taunt was enough of an easy lead metagame to make it viable.
Drapion: Stall, not to mention having a good phazer set, an immunity to psychic and the ability to absorb poison.
Hariyama: Lead Metagame, I had a huge succes using this, as well as Leadachi with Energy ball, but yeah.
Moltres: The only thing holding this thing back was SR, seriously.
Toxicroak: Top-threat because you wouldn't whether your opponent wouldn't have one.
Heracross: Ok, you got me there. Outclassed, but still used a fair amount.
PorygonZ: It can 2HKO Blissey if it wants to, not to mention it looks full of swag.
Changes underlined. What you seem to have forgotten is the fact that Gen 4 was Balanced, OU was OU because it was balanced: everything fitted right in there (except E-vire, shut up). There was a reason why almost nothing switched tiers, that is because everything in OU could cover something in OU: yes there were pokémon of lower tiers that were actually Better in OU than their own tier because of the struck-balance,
Porygon2 being the best example of this: being the only real non-steel to be able to deal with dragons and Gyarados: top-threats of last gen. Do also not forget that Gen 4 didn't had the shitty team preview, as such certain pokémon could come out as a real suprise to you. For example, you have a powerful gyarados ready to sweep with a dragon dance under it's belt and Waterfall + Stone edge as options. Your sub was broken by something (I do not know what, but at least it was possible back then). Suddenly your opponent pulls out a Toxicroak or Porygon2 out of nowhere: OH SH!T, and gyarados suddenly is left biting the dust. Why? Not because something was stronger or faster: but because something else was simply able to beat it.
Gen 5
Legitimate Threats:
Amoongus
Ditto
Kingdra
Mew
Sableye
Slowbro
Stoutland
Victini
Xatu
Has a niche:
Abomasnow
Azelf
Azumarril
Porygon2
Quagsire
Virizion
Weavile
Zoroark
Mienshao
Sort-of-could-do-something-in-OU:
Cofagrigus
Lanturn
Raikou
Sharpedo
Tornadus
Bronzong
Roserade
Removed/Changed:
Zoroark: Team Preview killed this thing, there was a time when Zoroark was considered Broken because of it's ability alone. Until Team Preview was revealed.
Mienshao: I would love to say lead-metagame, but we lack one. It's only niche is that it's a faster scarfer than terrakion.. And that it can scout for ite- oh no wait, we don't have that anymore.
Brozong: Sure Bronzong can wall, but what can it do other than that? Gyro Ball? T-wave? Stealth Rock? Yeah, and then?
Roserade: It's only good if used with a scarf or as a spiker, and then: what the hell are you doing here. We got ferrothorn. Though it does have leafstorm (woohoo..) and sleep powder, but venusaur does it better.
Aerodactyl: I'm not even going to bother
Darmanitan: Rain beats it, well and stealth rock.
Heracross: I'm suprised you even dare mention it, I mean come on: there's terrakion and- well just terrakion and breloom but still.
Sandslash: you even bothered to call it, horribly horribly outclassed by ANYTHING. Except that it has rapid spin.
Snorlax: How dare you, with only rest as healing-method it becomes dead-weight. Hydro Pumps are ok-ish, but snorlax can't do much to gain all that health back, not to mention the fighting types. Even P2 does a better job.
Zapdos: Not until it gets it's DW ability it's not.
Chandelure: Rain
Cobalion: well it's steel type alright, and fighting. But does it resist water or is very strong? No sir.
Frosslass: Hail only, in Gen 4 it was a serious threat. Now it's a joke.
Gorebyss: Sure it can baton pass shell-smashes, but then what? Not to mention Cloyster
Machamp: I tried to use it, it's dynamic punch is still feared. But it's just too slow to work.
Rotom-H: Why would anyone use this when there's Rotom-W, it may have been the best of OU of all the rotoms it is just bad now.
Scrafty: It's own bloody page states that it's too slow to seriously compete with the other fighting types.
Swampert: It was ok-ish last gen, gastrodon is better this gen. What more do you want? Stealth Rock? Please.
Victreebel: As you said, outclassed by Venusaur. Not to mention nobody uses this thing, so why would this be even on the list?
See the changes? Have you checked their stats, movepools and abilities? Noticed that the pokémon that were viable in Gen 4 but not OU are actually Weaker than those of Gen 5. The reasons these are even on the list are at least one of the following reasons:
A) They can abuse weather
B) They counter Weather
C) Support
Have you realized that those that did not make it on the list have similiar reasons?
A) They are (technically) outclassed
B) They are weak to Weather
C) They can't support weather (properly)
D) Power Creep
I am aware that the Power Creep destroyed a lot of pokémon but have you just scrolled through the page of all the fully-evolved pokémon and seen the potential in something they have? But in the end they are all held back because of one thing: weather. I'm not saying all weather should be banned, but at least thoroughly looked through. Especially Politoed with Drizzle under the support clause. Why? Because as a lot of people state: they use Politoed because of it's ability, not because it's good.
If something is shit but gets a godsend ability that's so massive as Drizzle, then they become 'good'. Not because of their stats, or movepool but because of their ability. If Luvdisc had gotten Drizzle, we'd just slap on a choiceband, give it aqua jet and three other moves, and it'll still be OU. Why? Because rain is that good.
Not to mention that rain together with water-typing actually holds massive power of pretty every type there is, it destroys those neutral to it. It destroys those weak to it twice, and it may or may not destroy those that resist it. If the only counters to rain are other weathers, water absorb/storm drain, three pokémon and swift swim, then there's a problem. Especially seeing as several pokemon used to counter rain (especially gastrodon) would be sitting in the depths of RU/NU if it weren't for rain, not because it's good in rain, but because it can somewhat counter rain. Somewhat because Keldeo still destroys it, as would Tornadus-T.
I'd also like to point out that even strong Water-Types are being outclassed by Pokémon with Thunder, Hurricane or even other water types just because they function not as good in or against rain.
Edit: Also I like that we have terms like rain-stall, heavy offense sun, etc. running around. But teams without weather, are almost always 'just' called weatherless teams.
Lastly, we can talk about this all we want. We can give calcs, team match-ups, cheese sandwiches, possible out-comes and whatever else you want. But in the end we are discussing our opinions. So good job on that one you guys (including me!)
Disclaimer: I'm not that good at pokémon, am a Gen 4 scrub and use a weather-less team with Porygon2 and Kingdra just because. So take your complaints somewhere else.
Legitimate Threats:
Tangrowth (being really generous)
Porygon2
Dugtrio
Crobat
Abomasnow
Cresselia
Raikou
Has a niche:
Claydol
Donphan
Hitmontop
Lanturn
Slowbro (Machamp Counter)
Spiritomb
Ambipom
Sort-of-could-do-something-in-OU:
Alakazam
Azumarril
Clefable
Chansey (Completely Outclassed)
Kabutops
Mesprit
Milotic (Completely Outclassed)
Rhyperior
Venusaur
Weezing (Gyara / Heracross counter)
Drapion
Hariyama
Moltres
Toxicroak
Heracross
PorygonZ
Wal(l)rein
Removed/Changed:
Porygon2: The best mixed counter to dragons/heatran/gyarados/jolteon and a whole lot more
Dugtrio: Trapping Pinky-Blissey was massive back then, please compare to now if you would.
Crobat: Lead Metagame and one of the highest speed-stats available.
Abomasnow: Hailstall, that's all, not to mention it could beat water types if playing it's cards right rather than the other way around.
Cresselia: One of the bulkiest CMers around, not to mention that it was actually broken to CM with Cresselia if the opponent didn't had Haze or a Phaze
Raikou: Fast CM'er, the offensive version of Suicune: one of the best pokémon last gen with it's crocune set.
Ambipom: Sure it was never great, but fake-out + taunt was enough of an easy lead metagame to make it viable.
Drapion: Stall, not to mention having a good phazer set, an immunity to psychic and the ability to absorb poison.
Hariyama: Lead Metagame, I had a huge succes using this, as well as Leadachi with Energy ball, but yeah.
Moltres: The only thing holding this thing back was SR, seriously.
Toxicroak: Top-threat because you wouldn't whether your opponent wouldn't have one.
Heracross: Ok, you got me there. Outclassed, but still used a fair amount.
PorygonZ: It can 2HKO Blissey if it wants to, not to mention it looks full of swag.
Changes underlined. What you seem to have forgotten is the fact that Gen 4 was Balanced, OU was OU because it was balanced: everything fitted right in there (except E-vire, shut up). There was a reason why almost nothing switched tiers, that is because everything in OU could cover something in OU: yes there were pokémon of lower tiers that were actually Better in OU than their own tier because of the struck-balance,
Porygon2 being the best example of this: being the only real non-steel to be able to deal with dragons and Gyarados: top-threats of last gen. Do also not forget that Gen 4 didn't had the shitty team preview, as such certain pokémon could come out as a real suprise to you. For example, you have a powerful gyarados ready to sweep with a dragon dance under it's belt and Waterfall + Stone edge as options. Your sub was broken by something (I do not know what, but at least it was possible back then). Suddenly your opponent pulls out a Toxicroak or Porygon2 out of nowhere: OH SH!T, and gyarados suddenly is left biting the dust. Why? Not because something was stronger or faster: but because something else was simply able to beat it.
Gen 5
Legitimate Threats:
Amoongus
Ditto
Kingdra
Mew
Sableye
Slowbro
Stoutland
Victini
Xatu
Has a niche:
Abomasnow
Azelf
Azumarril
Porygon2
Quagsire
Virizion
Weavile
Zoroark
Mienshao
Sort-of-could-do-something-in-OU:
Cofagrigus
Lanturn
Raikou
Sharpedo
Tornadus
Bronzong
Roserade
Removed/Changed:
Zoroark: Team Preview killed this thing, there was a time when Zoroark was considered Broken because of it's ability alone. Until Team Preview was revealed.
Mienshao: I would love to say lead-metagame, but we lack one. It's only niche is that it's a faster scarfer than terrakion.. And that it can scout for ite- oh no wait, we don't have that anymore.
Brozong: Sure Bronzong can wall, but what can it do other than that? Gyro Ball? T-wave? Stealth Rock? Yeah, and then?
Roserade: It's only good if used with a scarf or as a spiker, and then: what the hell are you doing here. We got ferrothorn. Though it does have leafstorm (woohoo..) and sleep powder, but venusaur does it better.
Aerodactyl: I'm not even going to bother
Darmanitan: Rain beats it, well and stealth rock.
Heracross: I'm suprised you even dare mention it, I mean come on: there's terrakion and- well just terrakion and breloom but still.
Sandslash: you even bothered to call it, horribly horribly outclassed by ANYTHING. Except that it has rapid spin.
Snorlax: How dare you, with only rest as healing-method it becomes dead-weight. Hydro Pumps are ok-ish, but snorlax can't do much to gain all that health back, not to mention the fighting types. Even P2 does a better job.
Zapdos: Not until it gets it's DW ability it's not.
Chandelure: Rain
Cobalion: well it's steel type alright, and fighting. But does it resist water or is very strong? No sir.
Frosslass: Hail only, in Gen 4 it was a serious threat. Now it's a joke.
Gorebyss: Sure it can baton pass shell-smashes, but then what? Not to mention Cloyster
Machamp: I tried to use it, it's dynamic punch is still feared. But it's just too slow to work.
Rotom-H: Why would anyone use this when there's Rotom-W, it may have been the best of OU of all the rotoms it is just bad now.
Scrafty: It's own bloody page states that it's too slow to seriously compete with the other fighting types.
Swampert: It was ok-ish last gen, gastrodon is better this gen. What more do you want? Stealth Rock? Please.
Victreebel: As you said, outclassed by Venusaur. Not to mention nobody uses this thing, so why would this be even on the list?
See the changes? Have you checked their stats, movepools and abilities? Noticed that the pokémon that were viable in Gen 4 but not OU are actually Weaker than those of Gen 5. The reasons these are even on the list are at least one of the following reasons:
A) They can abuse weather
B) They counter Weather
C) Support
Have you realized that those that did not make it on the list have similiar reasons?
A) They are (technically) outclassed
B) They are weak to Weather
C) They can't support weather (properly)
D) Power Creep
I am aware that the Power Creep destroyed a lot of pokémon but have you just scrolled through the page of all the fully-evolved pokémon and seen the potential in something they have? But in the end they are all held back because of one thing: weather. I'm not saying all weather should be banned, but at least thoroughly looked through. Especially Politoed with Drizzle under the support clause. Why? Because as a lot of people state: they use Politoed because of it's ability, not because it's good.
If something is shit but gets a godsend ability that's so massive as Drizzle, then they become 'good'. Not because of their stats, or movepool but because of their ability. If Luvdisc had gotten Drizzle, we'd just slap on a choiceband, give it aqua jet and three other moves, and it'll still be OU. Why? Because rain is that good.
Not to mention that rain together with water-typing actually holds massive power of pretty every type there is, it destroys those neutral to it. It destroys those weak to it twice, and it may or may not destroy those that resist it. If the only counters to rain are other weathers, water absorb/storm drain, three pokémon and swift swim, then there's a problem. Especially seeing as several pokemon used to counter rain (especially gastrodon) would be sitting in the depths of RU/NU if it weren't for rain, not because it's good in rain, but because it can somewhat counter rain. Somewhat because Keldeo still destroys it, as would Tornadus-T.
I'd also like to point out that even strong Water-Types are being outclassed by Pokémon with Thunder, Hurricane or even other water types just because they function not as good in or against rain.
Edit: Also I like that we have terms like rain-stall, heavy offense sun, etc. running around. But teams without weather, are almost always 'just' called weatherless teams.
Lastly, we can talk about this all we want. We can give calcs, team match-ups, cheese sandwiches, possible out-comes and whatever else you want. But in the end we are discussing our opinions. So good job on that one you guys (including me!)
Disclaimer: I'm not that good at pokémon, am a Gen 4 scrub and use a weather-less team with Porygon2 and Kingdra just because. So take your complaints somewhere else.