The angrier he gets, the stronger he gets—and Bruce Banner's gamma-irradiated alter ego has gotten angry enough to crack continents and punch through dimensions. The Hulk's strength has literally no known upper limit, he regenerates from virtually any wound, and his thunderclap can level city blocks. The only thing scarier than fighting the Hulk is the realization that he hasn't even started trying yet.

A hero who trained so hard he went bald and accidentally shattered the concept of power scaling itself. Saitama can defeat any opponent with a single serious punch—that's not an exaggeration, it's the entire premise. He's punched through dimensions, sneezed away Jupiter's atmosphere, and his biggest daily challenge is finding a sale at the supermarket before it closes. The ultimate parody character who is, paradoxically, completely unbeatable.