Heroes by themselves are not necessarily exciting. If they didn’t have a villain to face, what fun would there be? Was Luke Skywalker more exciting on Tatooine, whining about going to Toshi Station or was he more exciting once Darth Vader captured Princess Leia and killed Obi-Wan?

The same applies to superheroes. A great hero has great villains. Spider-Man has the Green Goblin, Doc Ock, Venom. Superman has Lex Luthor, Bizarro, and Doomsday. Many superheroes have an evil version of themselves to square off against. For a great look at the many types of villains your favorite superheroes have to face, check out I Love Opposite Numbers over at the Newsarama blog.