LOTR 30 DAY CHALLENGE
Day 7 - Favourite Antagonist: I hadn't really thought too much about this previously, but I think it would have to be Sauron. Starting from when he was just a servant to Morgoth, he was able to trick the Numenorians into making him chief advisor so they would do pretty much whatever he would say, plus he was the necromancer as well which was pretty awesome. Also the fact that he's like the most powerful being in Middle Earth (besides Morgoth, but he's not really in the picture since he was imprisoned).
(Image from Guardian's of Middle Earth on Steam)