This was on CV not too long ago. Would give a slight edge to Anakin and Ventress due to Anakin being the MVP. I think a fight between Maul/Anakin and Savage/Ventress would take the same amount of time to conclude, roughly. When those fights finish, Anakin kills Savage. On the other hand, Anakin would kill Savage quicker than Maul would Ventress, resulting in Maul being double teamed.
I do see scenarios where Anakin could be double teamed, and then lose, but they wouldn't happen for a majority.
And then if the fight became something of a scrap where everyone is swapping opponents constantly, that benefits Anakin and Ventress more. Although anything could happen in that kind of scenario.