For the N64 the top 5 games were...
Zelda OOT... Ill add some spaces to separate this game from the next 4 which are in no order.
Super Mario 64... Classic and alot of fun, you can replay this and its not boring.
Super Smash Brothers... Just as good maybe better than Goldeneye when it came to multiplayer.
Goldeneye... So much fun
Ken Griffey Jr. Baseball/NFL Blitz... They tie, they're amazing.
Now other games that deserve consideration
Mario Kart 64
"If something happens, and it's the Cleveland Browns, I'm going to pour my heart out for the Dawg Pound and try to win a Super Bowl for Cleveland," he said. "I don't care if they've had 20 starting quarterbacks since 1999. I'm going to be the 21st and the guy that brought them the Super Bowl." - JFF