In no particular order:
Super Smash Bros. Brawl
No More Heroes
No More Heroes 2
Klonoa
Fire Emblem: Radiant Dawn
Tales of Symphonia: Dawn of the New World
Tatsunoko vs. Capcom: Ultimate All-Stars
Super Mario All-Stars 25th Anniversary Edition
I suppose that's it, really. I have about forty Wii games, but I wouldn't really miss them if they disappeared. These are the ones I'd miss, some of these being my favorite games of all time. But really, I do just use my Wii as a Gamecube.
Super Smash Bros. Brawl
No More Heroes
No More Heroes 2
Klonoa
Fire Emblem: Radiant Dawn
Tales of Symphonia: Dawn of the New World
Tatsunoko vs. Capcom: Ultimate All-Stars
Super Mario All-Stars 25th Anniversary Edition
I suppose that's it, really. I have about forty Wii games, but I wouldn't really miss them if they disappeared. These are the ones I'd miss, some of these being my favorite games of all time. But really, I do just use my Wii as a Gamecube.