Wolverine is the new Sentinel. It used to be OH SHIT FRYING PAN! OH SHIT PISTON LEGS! LASER SPIT GOD DAMNIT!
Now it's just OH SHIT DIVE KICK! OH SHIT REBOUNCE OFF OF EVERYTHING!
I don't think Wolverine is as good as, say, Magneto as far as versatility. Or Dante, who I think may be the best in the game. Or Amaterasu. I think I would put those as my top 3, but this game is so broad that it's a revolving door of top 3's. Phoenix is really good, but she gets annihilated by Sentinel's Hard Drive > DHC into almost anything (Ice Storm, I'm looking at you). Dive kick is just so easy to do it blows my mind. Funniest team ever is Wolverine/Akuma/Sentinel online, because you can guarantee the person is going to do literally one move with each character.
I'm still enjoying this game.