Mario vs the Guardians of the Globe: Who Wins?

[Lism]

I think Mario stands a good chance. He's fought moon-level people like DK and Wario, and Bowser is even stronger than them. Omniman is arguably only moon level himself, as he needed 3 people to help him destroy a planet which was already severely destabilized by a laser canon.

 

[KingCargo]

Sonic.