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