Twins and their Space-Monkey Rumble...
Jan, Jace & Blip: Flight, invisibility/stealth, force-field, add some basic ghost-power-band weaponry; laser, heat and freezing ray.
Zan, Jayna & Gleek: Standard morphing powers, although have them use them slightly more intelligently
(Gleek has infinite-prehensile tail (although can be a liability).
Jaina, Jacen and fellow Legends Jedi Academy trainee Lowie; Basic young academy Jedi force skills and sabers (force pull, cloud weak minds, speed, agility, deflection.
Who wins!?