It's not surprising that Mario gained the top spot for the Wii or that Zelda gained top spot on GC or that Pokemon is at the top as well on the handhelds. These numbers were all taken from Gamefly for their top rentals. More platforms can be found here

Wii:

1. Super Paper Mario (Nintendo)
2. Cooking Mama: Cook Off (Majesco)
3. Mortal Kombat: Armageddon (Midway)
4. Prince of Persia: Rival Swords (Ubisoft)
5. Spiderman 3 (Activision)

GameCube:

1. The Legend of Zelda: Twilight Princess (Nintendo)
2. Mario Party 7 (Nintendo)
3. Paper Mario: The Thousand-Year Door (Nintendo)
4. TMNT (Ubisoft)
5. Super Smash Bros. Melee (Nintendo)

Nintendo DS:

1. Pokemon Diamond (Nintendo)
2. Pokemon Pearl (Nintendo)
3. Puzzle Quest: Challenge of the Warlords (D3P)
4. Diddy Kong Racing DS (Nintendo)
5. Naruto: Ninja Council 3 (D3P)

Game Boy Advance:

1. Pokemon Emerald (Nintendo)
2. Final Fantasy VI Advance (Nintendo)
3. Pokemon Fire Red (Nintendo)
4. Pokemon: Ruby (Nintendo)
5. Pokemon Leaf Green (Nintendo)

tekmosis via gonintendo.com »