Originally Posted by Fat Squidsauce
That being said, I also want to propose zapdos fall to rank A. Why is it rank S in the first place? It gets stopped cold by a few walls, has no boosting move, and middling base 100 speed for an offensive threat. As a defensive pokemon, stealth rocks weakness prevents it from walling a lot of threats it is supposed to wall. Raikou is much scarier, and isn't weak to SR.
All talk of Lanturn set aside I can totally agree with this part though basically everything you said is true although I would remember Zapdos does have a boosting move (Agility) which allows it to sweep but only very late game.
The only reason I could see Zapdos is in S is because it can run so many sets all of which are just a little different because it has the stats and moves that let this happen. All sets have the same problem though, they will rarely get past Snorlax, they all are rather weak as a wall if you factor in the SR weakness and they are all easily revenged by things like Darmanitan (excpt the rare Agility set).