Darkpitt most game systems have the same games for them. But there are certain games that go to only one system so I will say Super Smash Bros. Brawl for the Wii.
Well, it depends. The Xbox 360 is better for online gaming if your that kind of person. The PS3 has the signifigance in graphics. The Wii is "ambidextrous" if you can put it that way, because it's good for online and offline, and is also more "hands on."
The Xbox 360 comes with games that the PS3 does not and vise versa, so there basically even in there games.
Now the Ps3 doesn't have as MANY games to choose from as far as the Xbox 360 does.
Xbox like Orange_Juice_twelve says is better for on-line I'd say, and same as for the PS3 having better graphics.
But like I said earlier, Wii is I believe the best unit/system of entertainment for the entire family to have fun. It's has laser detected wireless remotes.( smart since the little kids totter off and forget it's tied to there arm)
i consider my VooDoo computer a System though as well ha ha.
Do you know how much these are now days!!! crazy! 15k!