1. Don't buy a Wii. $500+ later invested in the console I really wish I had not.
2. Xbox360 is a winner now.... as long as you get lucky and your console doesn't die.
3. PS3 looks to be the winner in the future(imo). Blu-Ray, MGS 3, GT5, Little Big World, Eye, Motion sensing controller, etc etc. The future for the PS3 is bright. However it downright sucks right now.
If you want great games NOW AND Future, get the Xbox 360. If you don't mind waiting a bit for PS3 to start cranking out games, the future for PS3 looks to be good. Both consoles look GREAT for the future. Wii is a load of marketting garbage that I wish I had never bought.