Er how bout 10 good games?
BoomBlox
GhostSquad is fun
NiGHTS underrated
Mario
Smash
Sonic is OK -- you can get it cheeeeap
Geometry Wars friggin nobody played, and it's great
WarioWare
No More Heroes is OK
Res 4/Okami is you didn't play them originally (although RE4 is much improved on Wii, period)
Most of those anyone could play & enjoy. Don't forget about Zack & Wiki, which should be tops on your Wii list.