The online activity of all games use WFC:
1. [NDS] Pokémon Diamond & Pearl - 1,644,066 connections
2. [NDS] Animal Crossing: Wild World - 276,900 connections
3. [NDS] Mario Kart DS - 261,265 connections
4. [WII] Mario Strikers Charged - 178,888 connections
5. [NDS] Metroid Prime Hunters - 164,687 connections
6. [NDS] The Legend of Zelda: Phantom Hourglass - 148,783 connections
7. [WII] Guitar Hero III: Legends of Rock - 122,367 connections
8. [NDS] Pokémon Fushigi no Dungeon Toki/Yami no Tankentai - 114,492 connections
9. [WII] Pokémon Battle Revolution - 107,597 connections
10. [NDS] Jump! Ultimate Stars - 95,772 connections
Alright notice that. AFter one day GHIII on the Wii is already at #7 haha. 122,367 connections in the matter of less than 24 hrs. This game is probably selling really well.
http://gonintendo.com/?p=28303
