From the pictures I've seen the GC Yugioh looks like Final Fantasy more then any other Yugioh game... I don't know how the battles go but I do know you use 3 monsters at the same time to fight. I've seen a picture of Kuriboh, Dark Magician, and Gaia The Fierce Knight going against Slifer (o.O). I also know you can play as Yugi or Kaiba. Its called Forcebound Kingdom.
I can't wait for it YGO:FK or Pokemon Colloseum, but DBZ...urrghhh I dislike it very much...