The NPD Group analyst Mat Piscatella has shared a list of the top 10 best-selling games in the U.S. for the Nintendo GameCube. As you can see in the image above, the list is led by Super Smash Bros. Melee, Mario Kart: Double Dash, Super Mario Sunshine and The Legend of Zelda: The Wind Waker.
Source: Mat Piscatella @MatPiscatella