Alejandro was the villain, but Duncan was the bad boy. Kind of like an anti-hero, you know?

Alejandro's more of a smooth operator in my opinion.

Alejandro was the great bad boy this season. He used his strategy, in a proper way, and got people eliminated. All Duncan did, last season, was convinced people to vote off another person in an abusive way. In which case, Duncan did that to Harold, after Justin started an alliance.