Fisto and Vebb are the dark horses here as they are both known Shii Cho users which will help them out lots in a situation like this, but their chemistry is lacking and Vebb's patience is non-existent which could be his undoing.
Barriss and Luminara probably work the best together but Qui Gon and Kenobi have the skill. Dark Barriss appears to be better than Jedi Barriss as evidenced with her duel against Anakin. I doubt she could've done that well as a non Dark-Sider. It's anyone's game really but I'm leaning slightly towards Jinn and Obi-Wan, although if Vebb can hold off Barris and/or Kenobi then Fisto takes either Qui Gon or Luminara.