Might as well post my thoughts on my team, which was Riolu, Magnemite, Zubat, Darumaka, Zorua, and Starmie
Riolu: Mid tier[/B]
Availability: Before the first gym, in Flocessy Ranch
Stats: While it is good as a Riolu, the fact that you can get a Lucario so early makes its stats incredible for where you get it.
Typing: While steel/fighting may seem great on paper, it's mediocre in practice. Ground is a horrible weakness to have in-game due to stuff like Sandile and Drilbur, and the fire weakness is almost as bad. The fighting weakness really isn't a problem, however, as there are few fighters in-game. Its steel STAB is almost completely unused, due to its being redundant with fighting.
Movepool: This is where Riolu really fails. Force Palm may be nice, but aside from that, it gets about one useful level-up move until level 51 (Aura Sphere). Most of the good TMs come fairly late as well, so you will be stuck with weak moves until around the Mistralton Gym.
Major Battles:
Cheren: About the only thing you can do here is spam Counter and hope for the best.
Roxie: You can't do anything to her pokes, and she will hit you hard in return.
Burgh: Similar story to Roxie, although if you have a Lucario at this point, you can probably pull out a win due to resisting all of grass, bug (4x), and poison.
Elesa: This is one battle where Lucario actually does OK, although the only way you can do a lot of damage to Emolga is with the unreliable Rock Tomb, and Zebstrika has flame charge to ruin your day. You can beat Flaaffy with little trouble, however.
Clay: You can beat Krokorok, but Sandslash and Excadrill will destroy you.
Skyla: If you have Rock Slide you beat Swanna and Swoobat, but Skarmory walls you all day.
Drayden: All of his pokes have a way to hit you super effectively; don't bother.
Marlon: You beat Carracosta easily and should beat Wailord as well, though Jellicent beats Lucario unless you have Shadow Ball (which wouldn't be a bad idea).
Colress: Finally, a time when Lucario beats the majority of the team. Everything except Metang and Beheeyem should easily go down, and you can probably take down Metang as well.
Ghetsis: If you are faster than Hydreigon, you can take it down, although the rest of his team is either too bulky or too hard-hitting for Lucario to take down. You should have Aura Sphere by now, though, so you should be able to take on any weakened pokes. If you have Psychic, you should also take down Toxicroak, and if you have Shadow Ball, you can beat Cofagrigus.
Shauntal: You should be able to beat Cofagrigus here with Shadow Ball, and may take down Jellicent as well, although Golurk and Chandelure will both destroy you.
Grimsley: You can beat everything except Krookodile, which will Earthquake you into oblivion. You should be faster than Scrafty, and you will have Aura Sphere here, so it should go down.
Caitlin: You can actually beat Sigilyph with Shadow Ball, but stay away from the rest of the team.
Marshal: You can do surprisingly well here due to Psychic, although Throh can probably take a hit, and Sawk has Sturdy. You can beat Mienshao and Conkeldurr if you are faster, however.
Iris: You can beat Aggron and Lapras, and maybe Archeops, although don't try to take on any dragons; they all carry super-effective moves.
Magnemite: Top tier
Do I really need to write an analysis for this?
Zubat : Top tier
Availability: You get it before the third gym, in the Castelia Sewers
Stats: When you get Zubat, its stats are nothing special, but they become great for their time when you evolve it into a Golbat. The fact that you will probably have a Crobat before the fourth gym makes its stats for that point of the game incredible.
Typing: Poison/Flying is one of the best defensive typings in this game. You resist the common ground-, grass-, and bug-type moves, and have an additional 4x resistance to fighting. The only weaknesses of note are rock and psychic, but these are negligible when compared to all the positives of Crobat's typing.
Movepool: Wing Attack when you first get Zubat is nice, and Bite provides decent coverage. Fly is great for when you get it, and can easily tide you over until you get Acrobatics, which just destroys everything that doesn't resist it. You don't have much else, but you don't really need anything else when you have Acrobatics.
Major battles:
Burgh: Stay away from Dwebble, but you easily beat the rest of his team. If you have a Golbat at this point, you may even be able to beat Dwebble, however.
Elesa: Stay away. Crobat can be used as a last resort with Confuse Ray, I guess, but that's a last resort tactic.
Clay: You can beat Sandslash, but Krokorok has Intimidate and Excadrill has that steel-typing.
Skyla: You easily beat Swoobat and Swanna, but switch out of Skarmory.
Drayden: Pretty much an even match-up. You both hit each other for neutral damage, but you have the harder-hitting attack, so you should win.
Marlon: Even match-up again. See Drayden battle, only easier as Marlon can't hit as hard back.
Colress: You should be able to OHKO Beheeyem, but stay away from all of his other pokes. If you can't OHKO Beheeyem, you will get OHKOd back.
Ghetsis: You easily beat Toxicroak, and should beat Seismitoad, Drapion, and possibly Cofagrigus as well. Stay away from Hydreigon and Eelektross unless they are weakened, however.
Shauntal: Cofagrigus can burn you, so watch out! Other than that, her team is frail enough that you probably one-shot all of her pokes except maybe Chandelure with Acrobatics.
Grimsley: You beat Liepard and Scrafty, but switch out of Bisharp and Krookodile.
Caitlin: Even though you have a type disadvantage, you may still be able to beat Gothitelle and Sigilyph due to their frailty, but you should definitely should not be battling Musharna and Reuniclus.
Marshal: Everything but Sawk should easily go down here, although Throh may take more than one hit.
Iris: The fact that mine outsped Iris's Haxorus even after a Dragon Dance makes this the ideal poke to use to beat Haxorus. Other than that, it's a pretty even match-up, with both sides hitting each other hard.
Darumaka: High tier
Availability: Before the third gym, on Route 4
Stats: Great as a Darumaka thanks to Hustle, and even better as a Darmanitan. STAB Sheer Force Flare Blitz off 140 attack will hurt
Typing: Pure fire is pretty good in-game, with all the bug- and grass-types running around. It doesn't help you with the multitude of ground-types, however.
Movepool: Darumaka's movepool fits its stats perfectly. It starts with Fire Fang, and gets Fire Punch very soon. Thrash provides a ton of power later, and once you get Flare Blitz at level 33, it absolutely annihilates even some resists. Not to mention that it gets Dig and Rock Slide by ™.
Major battles:
Burgh: You sweep the entire gym except for Dwebble, which you should switch out of.
Elesa: This is a pretty even match-up. No one can hit each other super effectively, but you have the higher power, so should win unless Hustle screws you over.
Clay: You probably don't have Flare Blitz yet, so stay away. If you do have it, you can beat Sandslash, but Krokorok has Intimidate and Excadrill outspends.
Skyla: You easily beat Skarmory and Swoobat, and should even be able to beat Swanna with Rock Slide if you have a Darmanitan (which you should by now).
Drayden: Don't even try here; you will lose badly.
Marlon: Stay away here as well, for obvious reasons. You may be able to beat Carracosta with Dig, but I wouldn't attempt it.
Colress: You should be able to sweep his entire team here; everything is either weak to fire or frail.
Ghetsis: Flare Blitz should be able to nuke all of his pokemon except Hydreigon, which you should leave to someone else. Due to the recoil, however, you will probably only take down two or three of his pokes.
Shauntal: You beat Chandelure here with Rock Slide, Golurk should fall to Flare Blitz, and Cofagrigus can't really touch you. Stay away from Jellicent though.
Grimsley: You easily beat Liepard and Bisharp, and may beat Scrafty as well. Stay away from Krookodile, however.
Caitlin: You should be able to OHKO Gothitelle and Sigilyph, although Reuniclus and Musharna may give you trouble, as you can't OHKO them, and their attacks and recoil will wear you down fast.
Marshal: Stay away from Throh and Sawk, as you can't OHKO either and they OHKO back, but you should be able to beat Mienshao and Conkeldurr.
Iris: You can hit her flying types with Rock Slide, but you should stay away from everything else, as they either resist Flare Blitz or are insanely physically bulky. If you have Hammer Arm, you can beat Lapras and Aggron, but most of you probably deleted it by now.
Zorua: High tier
Availability: Right before the fifth gym, as a gift
Stats: Zoroark's stats are usually nothing out of the ordinary, but the fact that this one is guaranteed a positive nature and 30 IVs in every stat makes this thing have very high stats. However, Zoroark's defenses are atrocious, so don't expect it to be taking many attacks.
Typing: Dark typing is generally middle-of-the-road, but illusion completely throws this out of the window. Disguise this as something like Crobat and you will never be hit super effectively.
Movepool: Not great, but serviceable. You will have to make do with Snarl for a while, which is underpowered, but Flamethrower comes eventually, and you should have Night Daze before Victory Road. It also gets Nasty Plot, which is a plus.
Major battles:
Clay: You beat Sandslash, but stay away from Krokorok and Excadrill, as you can't touch them.
Skyla: You easily demolish Swoobat and have an even matchup with Swanna, but stay away from Skarmory.
Drayden: With Illusion, he shouldn't use Revenge first turn, so you have a shot to beat something. Overall not a good matchup, as Snarl is underpowered by now, and none of his pokes are special attackers.
Marlon: You should beat Carracosta due to its atrocious special defense and Jellicent is weak to Snarl, but stay away from Wailord.
Colress: You beat Beheeyem due to the insane type advantage, but stay away from all of the steels.
Ghetsis: Cofagrigus should go down, and Seismitoad and Eelektross can be beaten thanks to Snarl's side effect, but everything else is a bad matchup.
Shauntal: You should be able to sweep her entire team.
Grimsley: Liepard is so bad that you can beat it, and Flamethrower demolishes Bisharp, but watch out for Scratfy and Krookodile.
Caitlin: Again, a clean sweep if Illusion is used properly.
Marshal: You can actually beat Throh thanks to Illusion, but don't try to fight if your illusion is broken.
Iris: Illusion screws with her Hydreigon, but this is a pretty even matchup in general; there are no major type advantages either way.
Staryu: Top tier
Availability: Between the sixth and seventh gyms, in Undella Town
Stats: Mediocre as a Staryu, but the fact you can evolve it right away into a Starmie makes its stats above average for the entire game.
Typing: Water/Psychic is a good typing in-game, as it hits a lot of stuff super effectively, and the only common type it is weak to is bug.
Movepool: Starmie may just have the best movepool of any in-game pokemon. Surf and Psychic are available immediately, and Ice Beam and Thunderbolt are before the Pokemon League and provide good coverage.
Major battles:
Drayden: You don't have Ice Beam yet, but you can still hit him for heavy damage using Psychic. I don't believe that he can hit you super-effectively either, so it's a fairly even matchup.
Marlon: Psychic should destroy his Carracosta and Wailord, but stay away from Jellicent.
Colress: You beat Metang, Klinklang, and Beheeyem, but stay away from Mangeton/zone.
Ghetsis: Seismitoad should easily go down, and I think you can get Ice Beam by now for Hydreigon, but stay away from all of his other pokes.
Shauntal: Even though you have a type disadvantage, you still beat Golurk and Chandelure thanks to secondary types. Stay away from the others, however.
Grimsley: Surprisingly, you beat the hardest member of his team, Krookodile, with Surf, but stay away from everything else.
Caitlin: Sigilyph dies to Thunderbolt, but everything else on her team destroys Starmie with coverage moves.
Marshal: Mienshao and Conkeldurr should fall to Psychic, but Throh and Sawk should survive (in Sawk's case due to Sturdy) and OHKO you back.
Iris: Lol. You should be able to beat every member of her team, with the possible exception of Hydreigon, thanks to everything being hit super-effectively by one of your moves.