[quote name='zenintrude']the nose, for me, was the hardest part to figure out. it's much easier with the wii, because you can adjust the size of any feature. with avatars, you kind of have to pick the best of what you're stuck with.[/QUOTE]
Most likely the main reason the Wii is far more customizable is the amount of data needed to send in online multiplayer about all your features. In other words, how many Wii games with Mii's can be played over the internet?