Who wins?
Insidious vs Sinister
Dead even: 70 picks for Insidious, 71 for Sinister. 91 more put them in the same row. From Horror Franchises Tier List. Pick a side.
DarkGoose on Insidious: the red face demon scene is a great jump scare
goblingamer3780 on Sinister: scariest movie of the 2010s according to that heart rate study
Horror Franchises Tier List: the full ranking