None gamers would never consider the games you listed, except for GTA4, but for them that game is the same as GTA3, VC or SA.
Wii has Wii Sports, Mario Party, Wii Play and SMG which are much more important games than the ones you listed; even Big Brain Academy Wii degree may be bigger than most of them.
Wii has most of the female gamer demographic (my girlfriend would never touch a 360 nor a PS3, but loves DS and Wii) with games such as High School Musical (more important than Uncharted (sorry, but it's true))
Wii has a simple controller.
Wii is cheaper, family friendly and it is ready to play anytime, no installation, etc.
Wii has a simple interface; just point and click.
Wii Fit and Mario Kart with simplified controls coming.
Smash Bros Brawl makes the console a must have for any self respecting hardcore gamer.
Full backwards compatibility with GC and the Virtual console.
Everyone can play it (girlfriends, sisters, grandfathers, mothers, etc)
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