I am in this situation right now as I type this. Mine are...

Team 1- Sabin & Terra
Sabin has the "Fire Dance" Blitz, which kills each enemy. I have Terra using Cure, when she actually gets a chance to fight.

Team 2- Cyan & Edgar
Edgar is the powerhouse with this team. He is able to kill the enemies at once with Bio Blaster. Cyan is merely on as backup.

Team 3- Gau, Locke, & Celes
This team is sitting in front of Banon, protecting him and taking care of enemies that go around the other teams. Gau's "Soldier" Rage and Celes attacking/healing are the focus. Locke is stealing at every turn.