1. EMPEROR PALPATINE
Emperor Sheev Palpatine a.k.a. Darth Sidious is actually the main antagonist in Star Wars and the one who makes sure all goes in the favor of the Dark Force. He was the one that convinced Anakin Skywalker to join the dark side. His evilness comes naturally and resides at his core. He is the kind of tyrant that chases power and gain it through manipulation and destruction.
He destroyed the Jedi Order and reinforced the Sith. But to do so, Palpatine posed as a well-intentioned public servant and defender of democracy while he was a practitioner of the dark side of the Force.
Palpatine represents corruption, evilness and malicious use of power. He lived a double life, a Naboo Senator and phantom menace who has manipulated the political system in the favor of fear and tyranny. He is definitely the best of Star Wars movie villains.
