But actually, the 360 controller is much better than the dual shock; the triggers, face buttons and analogue sticks are miles better and the shape is far more ergonomic. D-pad is attrocious and the aforementioned placement of that analogue stick are the only things I can see wrong with it, but I don't generally play games with heavy dual analogue use; I've just noticed this playing FarCry 3.
Dual shock is far superior for fighting games.