A good villain makes a good movie/drama and bad one totally ruin it for me. I like when the movie/drama has this handsome, charming and amazing villain that you could even like more than the hero.I'd like to know about movies where the villain gets the spot light (very cool, has love interest, his actions can be justified some how,..etc).
Some examples:
Cold Eyes
Monster
Oldboy
Confession of Murder
EDIT: I forgot to mention anti-hero....You can also suggest movies/drama starring anti-hero