The xbox 360 controller is the best controller since the original xbox controller.
The ps3 controller has a weird feel to me, and the wii controller isnt ergonomic at all. the 360 controller fits in the hand naturally, and thumbstick placement is perfect
My favorite controller of all time is the Gamecube controller. With that said, the 360 controller is nearly perfect. It fits great in my hands and has a good button layout.