I know that where I work, every dev has a 360 controller plugged into their PC, but then where I work is probably the exception to the rule, instead of the rule itself.
Yeah, but it does seem normal joysticks are out of the picture entirely... I know loads of devs that use Xbox360 controllers, I think there's a slight shift in using the good old 'wasd' configs to using Xbox360 controllers as the basic control scheme in games actually.
Cheers