Which Halloween Movie Would You Consider Iconic?

Halloween will be here before you know it! As soon as October hits, you better have your costume ready because it goes by quickly. All the ghosts and goblins are going to start creepin soon and check this out, according to a recent poll, the Halloween movie they say is the most iconic Halloween movie of all time. 

A Nightmare on Elm Street and Scream came in 2nd and 3rd. What makes a movie 'iconic?' Scare factor? In that case Exorcist all day, it should have topped the list. Classics like Chucky, Friday the 13th, Pet Sematary...which scary movies would you say are iconic?