Without a doubt 360. The Wii is awesome and all, but all of the games are just either party games or kids (omitting Resident Evil.) What happened to the days of sitting and playing video games? Also, the PS3 is sort of in the dark right now, so thats immediately excluded.
Well, this thread should be locked up because there are to many like this. But, if I had to decide I would have to go with the Xbox360 =) because it has the best graphics. Also, because of the fact that PolarX is right about all the games they're all for little kids on the Wii. Finally, because the PS3 is terrible, I mean its graphics are okay and everything, but the only good feature are the things that able the controller to be used as a steering wheel (The 6-axis) (for those of you who don't know what I'm talking about.