It is the opposite for me : The triggers buttons on my DS3 are still a bit hard (I don't use it enough probably), which gives me some precisions problems when playing KZ2 (note to mention that I have to block this tiny controller in the palm of my hand.. which brings even more pressure...).
Note : I feel the pressure of my 360 triggers unchanged, even after 450 games of Halo 3.
Evan Wells (Uncharted 2): I think the differences that you see between any two games has much more to do with the developer than whether it’s on the Xbox or PS3.