Wii Warm Up: How important is Mii integration?

A lot of games, both upcoming and already released, support the use of Miis. Miis are great, as we've all certainly made our fair share of them. But, we were wondering just how important is Mii integration? It doesn't really add much to games, as it's pretty much just the ability to slap a cartoonish mug where it otherwise doesn't belong. Some of you probably can't live without it, though.

Is Mii integration a feature you look for in a game now? What's your favorite game to support Miis and why?

This article was originally published on Joystiq.