Well, these are my recomendations for Wii:
If you played the Budokai Tenkaichi series for PS2, you might get interested in Budokai Tenkaichi 3, what does support GCN controller.
Although I'm not fan of Naruto (neither DBZ), Clash of Ninja Revolution 3 is quite fun and the controls are pretty easy. If you ever played the previous Naruto titles for GCN (Clash of Ninja 1 & 2 / Gekitou Ninja Taisen 3 & 4), probably you will note that it lacks of unlockable content. Like DBZBT3, it does support GCN controller too.
Phantom Brave is another good option even if you aren't a fan of tactical RPGs. Originally developed for PS2, it got a port for Wii. It was made for the same team that did the Disgaea series, so gameplay is almost the same. Another game that supports GCN controller.
Besides of the Sonic games, that's all my collection.
same here.