I need to know the version of Godzilla, like Showa, Heisei, or one of the Milleniums, etc. before I can accurately answer.
Okay, not sure how you wanna do round three if you wanna do a single version of millennium Godzilla, or if you wanna do a version with all their powers combined, or all of them at once. But in Godzilla vs Megauirus, he created a black hole with his atomic ray. I'm not saying Godzilla wins, but that is definitely an impressive feat.