If you have a Y chromosome and the appropriately stereotypic hands. :shifty:
I have a Logitech F510. Same capability, but much more pleasant to wield. Basically the same form as a PS controller, really.
:lol:
I don't have a Y chromosome but actually prefer the 360 controller, myself. It fits my hands more comfortably than my old Logitech Rumblepad 2 did. (I have short fingers and wide palms, so with the 360 controller I can grip it easily and not have to reach too far to hit any of the buttons.)
Also there are some games for the PC, like Dead Rising 2 (IIRC) that will only accept the 360 controller or keyboard/mouse set-up.