I think, what Nintendo did with their franchises on the Wii is barely more interesting than on the Gamecube. It's fun to say that there's more AAA titles on the GC, but the games are far better on the Wii.
Everyone has its own AAA titles. It's the way you appreciate them. I played Modern Warfare 2, graphics are impressive, but I got bored of the game after the mission in Russia. My AAA titles are on the Wii, cause I love Nintendo, I love Mario and Zelda. I have about 20 AAA titles on the Wii, and about 15 on GC. So, Nintendo already pleased me a lot. And 2010 has just begun! The Wii will still be there in 2011!
The WiiWare offers also the best downloadable games of this gen.