User blog comment:Thundrtri/Who is the greatest villain? Let's find out.../@comment-5495321-20130305031448/@comment-5795750-20130306085735

The Lizard vs Hawkgirl?

Killer Croc vs Aquaman?

Green Goblin vs Red Hood?

Lex Luthor vs Captain America?

Abomination vs Bizarro?

Red Skull vs Batman (Nolanverse)?

Sorry but those are all I can think of.