I care about games, not hardware...
so I don't limit myself to a platform. Where ever the games go, I go... PC, 360, PS3, etc... 
as far as the hardware goes, it's all preference. What may appeal to one person, may not appeal to another.
For example, M/K in a FPS game isn't really a positive on the PC (for me) because I've been playing them for so long, that they all seem "too" easy now. M/K gives you such an unrealistic advantage against AI. It's accurite, but very unrealistic to be turning 360 degree bunny hopping while sniping someone in the head from 500 meters away. While it's much harder to aim with the gamepad, it feels more realitic considering a machine gun weighs a lot (irl) and it takes time to turn around, see someone, aim, and shoot. FPS games on console rely more on strategy then twitch aiming (which I find boring after so many years).
While on the other hand, M/K is amazing for something like RTS (SC, War3) and turn base Strategy games (Civ4, GC2). Something that just can't work properly on a gamepad (although LOTR2 on 360 was a decent attempt compaired to other console RTS controls. Still lightyears away from M/K but it was much better then average).
