my favourite is ringu. its terrifying because it builds up its tension slowly. it is very atmospheric but also places terror in the mundane. the things in the film that are scary are very normal things; tv, being alone. it also creates a very convincing urban legend. it feels like something that is more real than something like saw. also, the ghost in the film is mysterious. its history is tragic and horrible but you never feel you know enough about it. it also looks and walks unnaturally. it looks broken, which is a scary idea