Who is it?
Bruno? Besticle? Xen? Ambient? Fred? Ashfall? Oops? Spartan?
Who is the greatest, most controlling, most dominating, most commanding and manipulative regardless of role in all the history of SC2Mafia?
I vote Tankboy. Because he causes more games to consistently end faster than any other player in history. But not really. Someone murder him in real life, please.