Went to see that Amitiville remake the other night at the pictures, and although I thought 'ah its only a rated 15' I found it a tad more disturbing than many 18 rated films Ive seen in the last year or two. Theres not much gore per say, but rather an intense story and phsycological stuff going on and even though the tried and tested cliche's are there (wide mirror shot in the bathroom, doors shutting themselves hard etc) I rather enjoyed it.
Many of the horror ones never (majorly) freaked me out with actual goryness, its the concept of the plot (truelly child trauma inducing stuff) that plays on your nightmares as a child that get me. Such as when I was younger, Nightmare on Elm Street and Childs Play etc, where the concept of being killed in your dreams like that, or inanimate objects like dolls are murdering people - its the sick and twisted mind of the writers I appreciate! LOL.
I agree that Texas Chainsaw Massacre (the original) is one bad mother trucker, as its so errm realistic and shot in a certain way which is also cleverly dependant on the imagination too.
Zombie films never really freak me out, I find them a bit daft.
Saying all that though, the family off The Goonies scared me as a kid and the beast in the cellar cells.
Sirius.
I seem to do this with films these days, dont realise Ive seen it till 1/2 way through the film lol :$ did it with Assault on Precinct 13 the other week 
was the first horror I watched when I was a kid, theres still something quite freaky about it today :| Maaalachiiiiiiiiii lol (or however you spell it)
