The Xbox 360 controller is heaven (aside from the awful d-pad). Everybody that I know who has used one loves it.
I haven't particularly liked the DualShock controller since it debuted 14 years ago or whatever. The rounded tops of the analog sticks make it harder to keep my fingers from sliding off them, and Jesus Christ, switch the d-pad and analog location already.
I forgive them with the original DualShock (as it was not not the first dual analog controller, but also the first time PS had even a single analog), but once the PS2 came out they should have changed that.