A hero is only as good as his villains, which helps explain why Batman has eclipsed Superman as DC Comics' trademark character. There are at least two dozen memorable villains in the Gotham City rogues gallery, while Metropolis has less than half that. Bruce Timm, an architect of both "Batman: The Animated Series" and "Superman: The Animated Series," is aware of this.
In a 2021 interview with Comic Book Resources, Timm said that, "Superman's rogues gallery was not as visually interesting as...