For years, I've considered Darth Vader the greatest villain of all time. He killed his subordinates poking fun at his ideals. He blew up an planet just to make a point. He killed his masters (both Jedi and Sith).
And he dressed in black. Pure awesome was written all over that character...until Revenge of the Sith. The coolest villain ever, got turned into a angsty teen.
Oh the humanity. That leaves top spot to...
Colt (Way of the Dragon). A villain so awesome, he doesn't need a last name.
Colt (Way of the Dragon). A villain so awesome, he doesn't need a last name.