I've never really been a fan of scary movies. I like to be chilled mentally and made to think about twisted things instead of jumping in shock. In fact, I hate things that make you jump in movies. To me it's a cop out.
For example, I hate the additions to the scene in Jaws where Hooper goes down to investigate the wreck of Ben Gardner's boat. Completely unecessary moment that was tacked on after previews.