Ninjas. No contest.

No way can a team with bikke on it win against a team with Edge.
Bikke is a wimp (he doesn't even fight!) Leila's nothing special, and Faris, strong as the lass is, is but one person.

Edge is a prince with some awesome elemental abilities, Shadow is just awesome (and he has a dog) and Yuffie... is nothing special (unless you count her limit breaks).