PS3 the most, mainly because it's just quiter and I don't have to install my games to the hard drive like I do with my 360. Plus I have like 60 games for my PS3 and like 13 for my 360, so I guess I have a larger variety. The Wii just sits there.
Bet with Conegamer and AussieGecko that the PS3 will have more exclusives in 2011 than the Wii or 360... or something.