I play max mouse sensitivity for PC games, but on consoles I seem to stick around 1-3, game depending. For Call of Duty, I always have sensitivity set around 4-5, in Halo games I've always had it set fairly low, in Battlefield I set it low as well (unless I'm on PC).
It's probably because I'm just better at aiming with keyboard + mouse. Oh well.
Sony bought Konami and will release a DDR game for the Nintendo DS. In this game, you set your DS on the floor and stomp on it till it no longer functions.