This is my best of 2013 list. Didn't read through carefully, so I guess most of these people already have mentioned in previous posts
Mama
Evil Dead
Dark Skies
The Conjuring
Sinister
Insidious Chapter 2
Regarding the upcoming movies this is my 'ToWatch' list :
evil within
dreadout
daylight
I've written
few words about these, although the movie has to be watched first before judged. For example The Conjuring wasn't scary to me at all. It was predictable as any other movie about exorcism.