I like the way Grayskull looks imposing with the large skull in the front that would make passerbys hesitant to even approach it. The box art looked the most creepy and would make a person think twice about wanting to go in there. So I'm going with that one. The Filmation version was nice but some of the light heartedness really made it less creepy. The vintage toy was fine too but the box art looked a lot better as I mentioned. The 200X castle looked way too pristine and didn't look gothic or creepy at all.