A not-exactly-groundbreaking list from Sporcle (although Christine might be underrated, and I haven't seen Children of the Corn on many best-of lists).
"Halloween is, without a doubt, one of the strangest holidays we celebrate in America (along with November 14—National Pickle Day, of course). And with its ancient traditions steeped in death, the afterlife, and troublesome ghosts, Halloween has spawned a lot of horror films over the years. Even those without Halloween themes suddenly come front and center around this time of year, when it seems everyone wants to be scared. In that spirit, here are 13 of the best horror movies of all time."