Personally, I don't think either of them is scary, but to answer your question Prom Night.
Prom Night & When A Stranger Calls NO WAY PARANORMAL ACTIVITY IS EVEN SCARIER THEN PROM NIGHT AND WHEN A STRANGER CALLS TOGETHER D:
no dark water isn't scarier than prom night
In the book Charlie calls edward before prom telling him that Tyler is at Bellas house picking her up for the prom. In the movie no one calls Edward.
The Production Budget for Prom Night was $18,000,000.
The duration of Prom Night in Mississippi is 1.5 hours.
The Movie Prom Night was not based on a true story, that was a rumor.
Prom Night in Mississippi was created on 2009-12-11.
Prom Night grossed $57,109,687 worldwide.
Demonic? No, the Prom Night remake nor the original deal with demons.
Prom Night - 2012 was released on: USA: 1 November 2012
Yes, a night dress is different from a prom dress because prom dresses are viewed as semi formal where as a night dress could be considered clubbing clothes.
Jamie Lee Curtis appears in both Halloween & Prom Night.