User blog comment:MelJandre18/Who Is Your Favorite Villain ?/@comment-99.137.226.7-20120530043322

From the show:

1. Vandal Savage

2. Klarion the Witch Boy

3. The Joker

4. Lex Luthor

5. Bane

6. Cheshire

7. Black Manta

8. Ra's Al Ghul

9. Hugo Strange

10. Icicle Jr.

My last ones are kind of iffy, but the first ones are just true.