Here are the games I say looked great, I'm talking 360 level graphics:
FFCC: The Crystal Bearers
Silent Hill: Shattered Memories
The Conduit
Spyborgs
SMG2
Metroid
Tatsunoko VS Capcom
Spore Hero
Cursed Mountain
Red Steel 2
No More Heroes 2 (That art is just too good)
Yup people are actually using the Wii's real power.
Currently enjoying: Monster Hunter Tri.