Hannibal - hands down. I love how twisted and sick he is! I would hate to be face to face with someone who could read me and my thoughts better than I can. He would intimidate me to no end!
For the option question - this is a very hard question for me. Not because I don't like villains but because I like so many!!! I think the best way for me to do this is to just list my top two.
Malfoy from Harry Potter by J. K. Rowling - Now some might argue that he wasn't a real true villain, but to me, he gave Harry a very hard time practically his whole youth and that makes hima villain. Why do I like him? I think its because I feel like Malfoy was crucial in how Harry turned out and with out the torment then I don't think he would have been the same.
Tanerk Raka from Blood Myth by Stacy A. Moran - I LOVE this character. He is made of raw sexuality. This is a new author, who yes, is a friend of mine. But I am just in-love with her character. He is everything I would want in a 'book boyfriend' and he is just fantastic. Ever since I first met her character (in the development stages of her book) I was sold. He kills, takes, invades and doesn't care who he hurts in the process. But his raw animal type qualities make him so desirable.