Definitely Damien: Omen II. I loved it WAY better than the first one.
And Do Prequel's count? If so, I love Dominion: Prequel to the Exorcist
And uh, yeah, my new obsession: X-Men: First Class
James McAvoy and Michael Fassbender kicked ASS in this movie
And now I have to see the rest of the X-Men movies. Damn you Mr. McAvoy & Mr. Fassbender ♥
And some extra X-Men: First Class related goodies :)