I have the wii, and I kinda amuses me that people try and whip out the "it doesn't have enough games," arguement when all 3 of the new systems just came out within the last 2 years; my point is none of the systems right now really have very many games out. That's just a matter of time.
Back to the Wii, I love mine, Twilight Princess has been a blast, the different channels, internet channel especially, have been very nice to have. I anticipate Brawl as much as anyone, and I also am trying to get my hands on Mortal Kombat Armeggdon. I'm very impressed with the ease of using the controller, I was a little worried when I tried to play Red Steel and Call of Duty 3 on my friend's wii before I got mine, but playing LoZ: TP totally made up for it; as well as Prince of Persia: Rival Swords. The best is yet to come for the wii, that's what I say.