I questioned a few of those myself (Cropsey and Battle Royale didn't make the cut).
Some of the lower movies are better than some of the higher movies but not as scary (Bergman!). Some of the higher movies are worse than some of the lower movies, but scarier (Paranormal Activity 3!).
My 100 (
on letterboxd).
100. Deep Blue Sea
99. Anaconda
98. Lake Placid
97. Cujo
96. Michael Jackson: Thriller
95. Identity
94. Final Destination 2
93. In the Mouth of Madness
92. They Live
91. Cabin Fever
90. Predator
89. Pitch Black
88. Day of the Dead
87. The Mummy (1999)
86. Red Eye
85. The Fog (1980)
84. A Nightmare on Elm Street
83. Fantasia
82. Silent Hill
81. Eyes Without a Face
80. It
79. The Frighteners
78. Saw
77. Twilight Zone: The Movie
76. Trick 'r Treat
75. The Terminator
74. Interview with the Vampire
73. The Seventh Seal
72. The Faculty
71. Fanny and Alexander
70. Saw
69. Pontypool
68. Carrie
67. One Hour Photo
66. Drag Me to Hell
65. Haxan: Witchcraft Through the Ages
64. Let the Right One In
63. Rosemary's Baby
62. The Exorcist III
61. Behind the Mask: The Rise of Leslie Vernon
60. From Dusk Till Dawn
59. Let Me In
58. Jacob's Ladder
57. Frailty
56. Timecrimes
55. Attack the Block
54. The Dead Zone
53. Ravenous
52. Slither
51. The Strangers
50. The Mist
49. The Awakening
48. The Wicker Man (1973)
47. The Devil's Backbone
46. I Saw the Devil
45. The Last Exorcism
44. Psycho
43. Thirst
42. Shaun of the Dead
41. The Conjuring
40. Invasion of the Body Snatchers (1978)
39. Paranormal Activity 3
38. Bug
37. Funny Games (1997)
36. Candyman
35. The Blair Witch Project
34. The Night of the Hunter
33. Shutter Island
32. Poltergeist
31. The Orphanage
30. Se7en
29. 28 Days Later...
28. Repulsion
27. The Innkeepers
26. An American Werewolf in London
25. Eyes Wide Shut
24. [REC]
23. The Fly
22. The Texas Chain Saw Massacre
21. Scream
20. The Others
19. The Descent
18. Martyrs
17. Night of the Living Dead
16. Melancholia
15. Evil Dead (2013)
14. The Cabin in the Woods
13. We Need to Talk About Kevin
12. Mulholland Drive
11. Jaws
10. The Thing
9. The Exorcist
8. Jurassic Park
7. Alien
6. The Sixth Sense
5. The Shining
4. Zodiac
3. Halloween
2. Pan's Labyrinth
1. Black Swan