A couple things:
1. Super Mario Galaxy is not the best reviewed game of all time. According to Gamerankings (and maybe Metacritic, haven't checked), it's 3rd.
2. How the heck is Mario & Sonic going to become the best selling sports game ever when Wii Sports already is?
3. And another question. How is Super Mario Galaxy going to become the highest selling 3D platformer of all time? Do you honestly think it has a chance in hell of outselling New Super Mario Bros? Heck, I'd be impressed if it just outsold Super Mario 64.
4. What "genre" did Wii Sports invent? If you mean sports games controlled by a Wiimote, than the Wiimote itself invented that. The only thing Wii Sports really is is a compilation of different sports.
5. And so what if Call of Duty 4 is better than Gears of War and Halo 3? All three are very critically acclaimed in the first place. So, if there was a multiplatform game that was the best rated game on the Wii, it wouldn't have a single good exclusive? Just because one of your multiplatform games is good doesn't completely negate every other game on your system.
