Round One Superman, Sentry and Wonder Woman VS Thor, Gladiator and Hulk Round Two Mongul, Lobo and Juggernaut VS Captain Marvel, Beta Ray Bill and Abomination
BOB
BobbyDAnimal Lover
My guess is Round One goes to Supes, WW, and Sentry (thought little is known about how powerful he really is) based on their balance.
Round 2 I'm giving to Captain Marvel, Abomination, and BRB for the same reason.