probably Last House on the Left with commentary

If Ghostbusters counts, it's by far my most-watched. Otherwise, I think it may be a toss-up between Halloween, House on Haunted Hill (original), and the Evil Dead trilogy. Black Sabbath may be up there too.

And I also think that the Fog is really great.

Friday the 13th 1-5
Halloween

...let's see..bubba-ho-temp(with commentary by "the king")and some low budget stinkers..."flesh for the beast" and "ghost watcher".i just can't get enough of this shit.

Hmmmm.
 

That's a tough tuff question....I think it would be a toss-up between "Night of the Living Dead" and "Bride of Frankenstein"...I did see the first "Poltergeist" 11 times when it was in the theatres, though...I liked it so much after the first time that I came back the next day and stayed in the cinema the whole day, etc., really stretching that ticket money. It scared the hell outta me! It really did! I liked it.

I'd say its a toss up between Evil Dead II and Jaws.

And yes, Jaws is a Horror movie. ;)