2016 Anime Villains Tournament - Round 3, Match 11
Scar - Fullmetal Alchemist: Brotherhood
Chouji Suitengu - Speed Grapher
My vote goes to Chouji Suitengu.
Points go to Suitengu for being one of the few villains who actually succeeds in his plans.
Thought this one would have been closer, but I'm going with Mr. Suitengu.