I voted Sauron. He's basically Tolkein's anti-christ.
Melkor was the ainur who rebelled against Eru Illuvatar and Manwe. He's basically Satan. Sauron was his lackey. Melkor (Morgoth) was defeated and Sauron basically just filled his gap. He's not as powerful as Melkor, but every bit as evil.
Voldemort, Scar, and Darth have "good" reasons for their shenanigans. Sauron is basically a fallen angel. He just wants to watch the world burn and kill some damn elves.
Melkor was the ainur who rebelled against Eru Illuvatar and Manwe. He's basically Satan. Sauron was his lackey. Melkor (Morgoth) was defeated and Sauron basically just filled his gap. He's not as powerful as Melkor, but every bit as evil.
Voldemort, Scar, and Darth have "good" reasons for their shenanigans. Sauron is basically a fallen angel. He just wants to watch the world burn and kill some damn elves.