LOL a lot of characters rape Sentinel pretty bad but Ammy is just a whole another level for Sent.
Sentinel can hardly get in on Ammy. He can't spit beam her at all and he can't fish for a frying pan. Ammy can sit in the corner and spam Cold Shots all day and Sentinel can't do shit about it.
At least Sentinel can hit Wolverine with a spit from long range...
Luckily the game is rarely going to be JUST Sent vs Ammy and there are going to be assists doing the talking as well, along with DHCs, X Factors and stuff. Plus I have seen Ammy get the frying pan and die to one Sentinel combo, it happens more than it should.
It's really funny but Sentinel being OP in the first month or so of MVC3 made the game evolve at a rapid pace. So much anti-Sentinel stuff got brought out that it became solid play immediately. The stuff that JWong came up to beat Sentinel in week 1 is stuff that is now considered the backbone of a lot of teams. Stuff like instant overheads, air throw combos (because Sentinel likes to be in the air), tech traps, pressure assists etc.