I'm not poor. But I suppose if I was I wouldn't care to be.
Darth Revan from the Starwars Knights of The Old Republic video game. He can technically be considered the protagonist and the antagonist. I'll let you play the game to see why. I consider him one of the most powerful Sith Lords.
I love a good bad guy! Darth Vader, Lord Voldemort... They make the story fun! This guy is great - KAHN!!!!