There's Metroid Prime 3, and I think EA released a Medal of Honor game on the Wii as well.Ok, maybe I worded it wrong. The Wii has better interaction with the people you are playing with. maybe this has to with the fact that you actually have to use a little more than your thumbs to play.
There is a first person for the Wii, just cant remember what it is. Requires the numchuck to play.