Going to have a big scary movie fest with a bunch of friends, any suggestions?

My friend and I are planning to have a night where we invite a bunch of people over (but not too many, less than 20 people probably) to someone's house and just chill out and watch a scary movie. We're all under 18 but we can handle most movies. What has been your favorite? Do you know any good clic scary movies? Please, no gory movies like Saw that are just plain gross instead of scary. If you can make a list of your top 5 or 10 (or whatever number) that'd be great, thanks :)