It's all about the Wavebird for me. Comfort-wise, it feels incredible, and the GC chord is ridiculously short. Plus, playing Brawl won't be at its peak unless you have a GC controller.
My Games of 2011:
The Legend of Zelda: Skyward Sword
Elder Scrolls V: Skyrim
Super Mario 3D Land
Uncharted 3: Drake's Deception