Oh boy it's been a while. Let's see--Gengar is B+...
I don't even wanna know. Let's just take a look at the current slate and get this over with.
Zapdos
C+ -> B- Neutral; Starting to lean Disagree
This isn't coming from a lack of Zapdos usage, as I've used a few sets with it before, but despite all of that, I'm still not sure if it's the best move up. Offensively, it's outclassed. Mega Manectric is maybe the best example, as it will normally have the exact same coverage; Thunderbolt, Flamethrower/Heat Wave, HP Ice, and Volt Switch. Seem familiar? inb4 Choice items--yeah, but is it really worth using that when you can just a Pokemon with BOTH higher Special Attack AND Speed? I know as much as most people that the total offense set I've just described isn't even a recommended set on the analysis, but it's something I wanted to get out because there are people out there that wanted to use Choice Specs/Scarf when it really couldn't afford to. Why? As it has been brought up before, Electric Checks have risen, particularly with Tyranitar ( <3 ).
So...yeah. Offensively, it's even outclassed by Moltres--at least THAT has use in Rain with Hurricane, with Zapdos doesn't get (theorymoning sidetrack--that'd be awesome--sidetrack over). So we're going to go where Zapdos is best: Defense. Wait a minute...what? DEFENSE? This has 90/85/90 bulk--not bad, don't get me wrong, but not very great, either. Just from typing alone, you'd think that this would be a premiere Scizor check, right? Okay...MEGA Scizor is the one that's big right now (I personally like both and am not afraid of using base Scizor, but its mega is obviously the bigger threat), so let's find out what it can do.
+2 252+ Atk Technician Mega Scizor Bug Bite vs. 248 HP / 176+ Def Zapdos: 153-181 (39.9 - 47.2%) -- guaranteed 3HKO after Leftovers recovery
Oh. That's better than I expected. Assuming the Physically Defensive Set, Heat Wave OHKOs the offensive set, but has only a 6.5% chance on the bulky set (Stealth Rock jumps it to a 75% chance--probably saved myself a few responses for mentioning this). While it has a small chance of being unable to OHKO Scizor, it does have two qualities over Heatran:
1. Healing. The bulk that Zapdos has sometimes isn't enough (in my eyes, guys), but the ability to heal can easily make up for it. Thankfully, Zapdos has access to Roost, which can also play mind games with Pokemon carrying Rock/Ice coverage.
2. Zapdos' typing gives is a resistance to Superpower, which Heatran does not want part of.
Those are very high and mighty qualities to have against Scizor, but it is also really worth it to run a relatively one-dimensional bird? If you want it to be a Scizor check, that means you have to run Heat Wave, forgoing Toxic, making you weaker to Tyranitar. To put this situation into perspective, allow me to give you a situation that Zapdos is going to likely find itself into.
1. You switch Zapdos into the field with Stealth Rock out. Already, Zapdos is sitting at 288/383 HP. Scizor sets a Swords Dance up. Leftovers makes Zapdos' HP 311/383.
2. Scizor switches out into Tyranitar while Zapdos is likely to use Heat Wave. Minimal damage. Zapdos heals again, 334/383.
3. Clearly, the trainer behind Zapdos should know the dangers of Tyranitar and should hightail it out. Unfortunately, the opposing trainer saw this coming and hit Pursuit.
252 Atk Tyranitar Pursuit vs. 248 HP / 176+ Def Zapdos (switching out): 115-136 (30 - 35.5%) -- 29.2% chance to 3HKO after sandstorm damage and Leftovers recovery
(115, 117, 118, 120, 120, 121, 123, 124, 126, 127, 129, 130, 132, 133, 135, 136)
Just from the figures above, we can easily assume a best case and worst case scenario. Best case, Zapdos takes the 115, putting it at 219/383. Worst case, Zapdos is taking full damage with 136, leaving it at 198/383.
*As a side note, these calculations were done using a Scarf Tyranitar, which also outspeeds Zapdos by 3 points.
4. Zapdos will have to switch back in eventually. Stealth Rock takes it toll yet again, putting Zapdos anywhere from 124/383 to 100/383. At that point, it's checkmate against Mega Scizor's Offensive Set. Offensive Mega Scizor is faster by 9 points and + 2 Bug Bite will do 39.9 - 47.2% (155 - 181) damage. If Zapdos switches out on a Swords Dance, it'll barely have enough HP to come back in, let alone take a hit.
Let's assume, however, that Scizor used Bug Bite (77 - 91 damage) instead of Swords Dance. Now we have to factor in a wider range of HP, sure, but best case, Zapdos will have 70/383 HP after Bug Bite and Leftovers, but worst case gives it 32/383 HP. Next turn, Scizor wins. Minimal damage from Bug Bite is 77, and Zapdos is looking at only 70 HP best case. It's a bittersweet checkmate that will leave the Zapdos user salty.
Even if the opponent doesn't have Tyranitar, what would Zapdos do against a Pokemon like Landorus-T, another popular Pokemon with Stone Edge and the ability to pressure defensive Pokemon? Since Zapdos would have to run Heat Wave, it becomes setup fodder to Mega Charizard X and, to an extent, Terrakion. It also loses its best weapon against multiple walls, as Toxic would've been the key to stopping Quagsire or forcing the blobs out. You trade a single move in order to stop one Pokemon like this (two if you count Ferrothorn...and nobody else does anyways), yet you lose out harshly otherwise. This further points out Zapdos' 4MSS, honestly, and it only makes me wish it was built differently. HONESTLY, it makes me want to use an Offensive set more than anything else--or better yet, a better Pokemon that fits the bill.
In short, I'm hard pressed to find Zapdos' major selling point--maybe I already found it but haven't really felt its worth yet. It has a good typing with Defog and Roost as tank/wall options, but barely any firepower and requiring EVs in Speed and Special Attack even with the Defensive set only shows how little it can do otherwise. Even Heatran doesn't need a lick of investment in either stat on a Defensive spread, as it has enough power, phasing, and even trapping capabilities in just the right places. I might be a touch biased because Heatran is my favorite legendary (and has been since its release), but I still wanted to give Zapdos a chance; it was my favorite of the Legendary Bird Trio and I wanted to see just one of them get up there. Oh well.
I particularly wanted to focus on Zapdos because I feel like Mega Altaria and Thundurus have been covered enough.
Mega Altaria
B+ -> B Agree
I need a moment to vent, but Altaria is my absolute LEAST favorite Dragon-Type Pokemon in existence. The only reason it ever became "good" is its Mega and, as shown here, it seems to be falling from grace. Too many people have torn it apart, with
Gary2346 above pretty much giving the final blow to the discussion in my eyes (way to go above and beyond, bro). After a critical look at Zapdos, a Pokemon I wanted to be good, I just want to see this one burn (which is fine because the Physical Sets are weak to it to begin with without Heal Bell).
Thundurus
A- -> A Neutral; leaning Agree
I feel similarly here in comparison to Zapdos, but I would always enjoy a good Thundurus rise. The only true reason I have no real opinion is because I haven't touched this one in ages (like...early ORAS OU ages), but I remember why it's so good. The rest of the community (bar whomever decides that Raikou should be the same rank and--that happened, didn't it?) seems to know as well, so I'll leave it to them.
Felt good getting that Zapdos rant out.