Wii, all the way. PS3 has nothing of interest other than graphics, really. The most anticipated game for it, Resistance: Fall of Man for the PS3, only got 30fps in-game, which would make me mad..since, ya' know, if I spend 600 dollars or more on the PS3, I want at least 60fps.
My pre-ordered Wii, Zelda, and extra controller/nunchuck come in a week.