Wii -
Ps3 -
Xbox 360 -
Played through a 32" Plasma HD Tv the graphics or the 360 are amazing, its fairly cheap (£280 for full package inc. hard drive, wireless controller etc...). My favorite games have to be COD2 and Ghost Recon. The 360 is really only fun (my opinion) if you have 360 online as single player games are not a favorite of mine. Personally I will be getting the Nintendo Wii next and then the ps3 early next year. Its entirerly up to you what you do obviously but after previous bad expiriences with the ps2 i would not hold your hopes on it being amazing from purchase until the next next gen console!
Thanks for reading
Wicker