I am a horror film fan. I love slashers. But the scariest movie I ever saw was the original "Halloween". Barely a drop of blood in it, but that music...! I slept with the light on for quite a while after that.
I also loved the "Scream" movies, but they're not scary. Funny and bloody, but not scary.
This link is to the trailer of a film I saw a while ago and loved; it's a horror comedy called "Tucker and Dale vs. Evil" and it is laugh-out-loud funny.Tucker And Dale Vs Evil - Official Trailer [HD] - YouTube
The film is graphic in the gore, but you don't really mind because you're laughing so hard. Check it out!