Defining he most evil villain is a very difficult thin to do. You have to factor in how much pleasure they ge from what they do. Along with how far they are willing to go before they will give up. Then ther'es still if they know exactly what they are doing, if it's of their free will. Being evil isn't something people just do. Not many villians believe they are evil. They think what the ra ding is the ight thing.

Being the evilest villian is hard to define. Especially with books, movies, Video games, and comic book all having villians that can be added to the roster.