My favorite Director of all time is Dario Argento. I can't believe how underrated of a director he is. He definitely is on a level with Hitchcock, Kurosawa, Taratino, Romero, Kubrick. Dude has literally directed some of the best films the Horror Genre ever produced. If you haven't seen any I insist you get a DVD COLLECTION
http://www.youtube.com/watch?v=R5wKppxpwK0
http://www.youtube.com/watch?v=kc_ZiWHFbnQ