Regarding Genesect I think one of the reasons many people are on the fence about him is because he doesn't usually sweep. And its usually the pokemon that can sweep so well, Like Mega Lucario, that scream the most broken. But while he may not sweep, he sure does have an obscene damage-dealt:damage-taken ratio. Frankly, this guy is hard to hit and hits hard, mainly thanks to U-Turn which unlike Landorus-T for example, gets STAB... and a potential item boost... and a potential Download boost too. Genesect, like Mega Gengar did, has the luxury of picking its fights. U-Turn is almost always a safe option for it and it can get it off a lot during the course of a match and the only times it wouldn't is if it happened to be able to revenge something on the spot with plenty of viable mixed attacks. Priority may exist but again, Genesect gets to pick his battles and can always U-Turn out of whatever counter you try to throw in its face. How are you going to make up for that outside of something like Rocky Helmet Ferrothorn or Garchomp? And this is of course pointless because Genesect frequently carries moves that both are 4x weak to. Spikes would be great to wear him down with, but Genesect fits very well onto HO teams its impossible to find the time. Like was said, he's great at wearing you down. Now as to whether he should be banned I'm not entirely sure yet. But I'm totally willing to make an alt and use some combination of him and Mega Luke and Deo S on the same team and see how easy it is to get to 1700.
Deoxys S is simply really fast and has appropriate power considering the creep as well as bulk. Hazards seem a misuse of his potential, he's unparalleled as a revenge killer, with enough power and move variety to make switches very hard for your opponent is you actually abuse his offensive sets. Taunt is great on something that fast too. I'm thinking he'll be manageable in OU though.
Mega Lucario does not need my input. You've all seen what people have said in this thread.
Deoxys S is simply really fast and has appropriate power considering the creep as well as bulk. Hazards seem a misuse of his potential, he's unparalleled as a revenge killer, with enough power and move variety to make switches very hard for your opponent is you actually abuse his offensive sets. Taunt is great on something that fast too. I'm thinking he'll be manageable in OU though.
Mega Lucario does not need my input. You've all seen what people have said in this thread.