Source: comicvine.gamespot.com

9. Imperiex

THIS LIST NEEDED TEN VILLAINS, OK?!

Yeah, Imperiex isn't the BEST villain in the world, and his only real star-turn (Our Worlds at War) isn't super great, even though I have a soft spot for it. But someone like Imperiex would be a great villain for a movie to really innovate on.

He's an armored, scary warrior, powered by the Big Bang. That's a pretty good threat for Superman to fight any day of the week. And his lack of an interesting backstory means he'd be more or less a blank slate for a movie to really do something cool with.

Plus, Imperiex is a good unifying threat to bring the DCU together for a team-up. A good first enemy for the Justice League, maybe, to give Darkseid a little more build-up before he finally shows up. But, either way, it'd be really interesting to see a version of Imperiex with a little more character to him.