Favorite Gamepad for PC Gaming??

I'm sure this has been discussed ad nauseam, but I'm going to ask again:

What is YOUR favorite gamepad for PC gaming? Notice that I said "your favorite" and not "best," because I'm curious about everyone's personal opinion.

I'm leaning towards buying an Xbox360 gamepad, (wired). This saves me the trouble of worrying about batteries or charging, etc., and apparently it's much more compatible than many other gamepads.

Thoughts?