Well, it's a tough battle:
Nintendo 64
- Super Mario 64 (revolutionary 3D platformer)
- Mario Kart 64 (exceptional four player action)
- The Legend of Zelda: Ocarina of Time (revolutionary 3D adventure)
- Banjo-Kazooie (excellent 3D platforming with god-tier soundtrack)
- Super Smash Bros. (revolutionary fighter with timeless gameplay enjoyment)
- Diddy Kong Racing (excellent soundtrack and gameplay variety)
- GoldenEye 007 (revolutionary single and multiplayer FPS experience)
- Banjo-Tooie (everything great about BK plus excellent multiplayer modes)
- The Legend of Zelda: Majora's Mask (revolutionary time system and fantastic story)
- Conker's Bad Fur Day (features an opera singing pile of shit)
Gamecube
- Luigi's Mansion (highly memorable experience with great gameplay)
- Super Mario Sunshine (great visuals and use of the water mechanic)
- Super Smash Bros. Melee (god-tier gameplay, features everything great about SSB plus much more)
- F-Zero GX (greatest racer of all time)
- The Legend of Zelda: The Wind Waker (excellent open world experience and fantastic story, soundtrack and visuals)
- Metroid Prime (great gameplay, soundtrack and immersion)
- Star Fox Adventures (perfect mix between Zelda and Rareware elements)
- Mario Kart: Double Dash!! (unique co-op take on the racing genre)
- The Legend of Zelda: Twilight Princess (excellent dungeon design)
- Eternal Darkness (fantastic story telling)
In the end, Nintendo 64 edges it out though through its massive quantity of greatness. Largely thanks to Rare's contributions.
