Demolishor,Mainly Cuz' he's a freaking Tank,and maybe the Anti-aircraft type of tank. (ooohhh nother crossover) E-102 Gamma and E-123 Omega VS Cybertron Minicon Team (Jolt,Sixspeed,Reverb)
Rhinox, Chain guns of death + tons of Brawl muscles + awesome intelligence ftw! Omega Prime (RiD) vs. Armada Prime combined with Overload and Jetfire
Probably the dumb twins get lucky Fortress Maximus, Metroplex and Omega Supreme VS. Scorponok, Piranacon, Predaking and Devastator
It would be a draw,either way. but we all know devastator will be the first to fall. Rotf Soundwave Vs The Eclipse Cannon from the sonic series
im guessing Fort Max Would Be the one standing' but yeah... its a hard fight though. so yeah... Rotf SoundWave Vs The Eclipse cannon.
Lagann. but it would be the most epic battle involving giant robots ever. Viewtiful Joe VS Armada Cyclonus