the G-man wrote:
Yes, Clark has a few other villains, but the plain and simple fact is that a general audience is gonna know who Lex Luthor is. No one but comic book fans know who Zod, Brainiac, Metallo, are....
Actually, thanks to Superman 2, Zod is probably at least as famous as Luthor to non-comic book fans.
Zod and Brainiac and the others have also been popularized by the various animated shows, not to mention ten years of SMALLVILLE.
Trust me, my CW-watching niece, who has never read a comic book in her life, knows who Zod and Brainiac are now.