Sorry to revive an old topic, buuuuuuuuuuuut:
Super Nintendo - Preferably one of the ones that looks all yellowed.
Final Fantasy 3/6
Super Mario World.
I thought heavily about switching Super Mario World for Harvest Moon or Kirby Super Star, but... I do think Mario World is THAT good. Also, A Link To The Past isn't on my list. It's a great game and all, but usually once I get about halfway into the dark world, I lose interest.