It has been said that the greatest villains are those opposite the heroes in every way. Batman and Joker: control and reservation versus chaos and enjoyment. Superman and Lex Luther: all brawn versus all brain. X-Men and Magneto: coexistence and equality versus terror and domination. I believe that everyone can see a great villain, but only a few can explain why he is great. Here, I have compiled a list of my favorite villains. They aren't all powerful; they aren't all flashy. But they all are polar opposites of the heroes they play against. And that is what makes them great villains.