Pic related is mine. Such a solid movie. From being a critique of consumerism to racism, to an action movie, to comedy at some points. And while it might not be scary in the traditional sense, the opening scenes detailing the chaos around a news station trying to remain calm during the end of the world are done pretty well and set the mood for surviving the apocalypse.
The 1990's remake of Night of the Living Dead is pretty good. The first three Ring japanese movies are good too, even though they change stuff from the books (The american remakes are ok, it could have been a lot worse).