My favourite horror/ghost movie I saw recently was The Conjuring, actually. I just really thought it was very well done and interesting to watch. I also really enjoyed Insidious up until the point where it started getting very bizzare towards the end.

It's not really a horror movie either, but Cabin in the Woods is just tremendous.

I do like the 'haunting where they have to figure out who the ghost is and the backstory of the ghost to get rid of the ghost' type movies. They're usually predictable but still good fun to watch!