I don't own a Wii (yet), but that's because I'm almost done with school and to get a Wii (and Brawl) now would sabotage my future like you wouldn't believe.
My brother has a 360, I played Kameo on it until he moved out, but that was the single game in his (fairly large) library that interested me.
As for PS3, I don't even know anyone who owns one, so I really can't comment too much. But from what I've seen regarding the games, I'm not terribly interested.
Even if I was rich, I'd be wary about paying hundreds of dollars for a console that might only give me a few games I play. I have a general policy of not buying any console unless the combined cost of the games it has that interest me exceeds the price of the console itself. The Wii does this for me, as did the Gamecube before it.
My brother has a 360, I played Kameo on it until he moved out, but that was the single game in his (fairly large) library that interested me.
As for PS3, I don't even know anyone who owns one, so I really can't comment too much. But from what I've seen regarding the games, I'm not terribly interested.
Even if I was rich, I'd be wary about paying hundreds of dollars for a console that might only give me a few games I play. I have a general policy of not buying any console unless the combined cost of the games it has that interest me exceeds the price of the console itself. The Wii does this for me, as did the Gamecube before it.