FF VIII'sTriple Triad. I also like the Chocobo World. The Snowboard game (VII), Blitzball (X),the Monster Arena (X), Spherebreak (X-2) and Monster hunting (both Marks and Cieth stones) are also fun. Also the DS IV has some fun minigames with the main characters and Wyte.
The Official Interceptor of the Duodecim Boards The Official Zangoose of the Pokemon B/W 2 boards