Wow, the Super NES brought so many great games it's hard to choose. Here's a few favorites I'd like to see:
ChronoTrigger
Donkey Kong Country
EarthBound (one of the greatest games ever made.. oh how I'd love this.. 
)
Mega Man X Series (also 7 and Soccer)
Secret of Mana
Super Mario All-Stars
Super Punch-Out!
TMNT IV: Turtles in Time
Damn, so many great games. I can't wait for the GBA-to-GCN adapter in the Spring. I'll be playing that more than anything. 