I don't think that I have seen a good scary movie in sooooooo long that I think the genre doens't really exist anymore. Now I am in to more headgame movies. But I did like the way 23 was done.
I'm not easily scared by movies, but I dont watch ahrdly any, so I guess the freakiest one I've seen is The Village. It also happens to be one of my favorites. Freaky probably isnt the right word to describe it, "eerie" would probably be better.