The best villain is probably Thanos. His motives are toward universal peace he just went about it wrong. World peace if sometihng that we want to attain. Studies have shown that their is enough food in the world to feed every one. That there is enough for every one. So killing half the population is not the answer. Thanos didn't see another way. And he was tired of seeing the universe deteriorate. So i think he is the best villain.
He pride's himself as a wine taster and Montessor uses this against him. Additionally when they head into the catacombs Fortunato refuses to back out even he is dizzy and is drunk.