um...i don't know. all of them i guess. if I had to pick one, it'd be brawl since it works great as a party game.

Trauma Center.

I'm a Nintendo fan, I wanted to play the new Zelda with Wiimote controls and Wii Sports was fun.

ONE OF THE GREATEST GAMES EVER MADE!!! Super Mario Galaxy!!! I was going to get my Wii regardless, since I am a Nintendo Fan.

I wanted the Wii well before any games were announced for it. That said, Brawl was the first game that made me check retails for availability.

The Wii was first console that I really wanted to buy since the SNES mainly because of the motion controls. But now first party tiles like Mario Kart, Mario Galaxy, Twilight Princess and Metroid are as important as the motion controls for me.

My parents and grandparents bought it for wii fit

i bought it because i always buy nintendo haha. guess i could have bought zelda for gamecube, but wii sports really got my interested.

No one franchise in particular, but Wii Sports made me want to get a Wii long before some of the franchises came out on it (and rather than just getting Zelda:TP on the GameCube).

I picked Zelda as that was the first game I purchased, however, in reality its simply 'Nintendo' that made me buy the Wii, as well as the eventual future home consoles they produce.

Unless of course, Nintendo stops making Zelda, Metroid, Mario, etc, etc.