Originally Posted by KRIM
This isn't a question of competence. You are literally setting up the impossible. Most of Superman's most interesting and cinematic villains are not nearly on the level of challenging someone who can move entire planets. That's like pitting a lion against an ant. There's nothing to work with.
Lex Luthor, Brainiac or Mongul (here's some irony for you: Pre-Crisis Mongul was STRONGER than Superman, Post-Crisis they had about the same power) are not capable of challenging Superman?