I'm currently watching 'Another'. It's very dark, that's all I can say at the moment. The first episode sucks you in, and it compels you to continue watching. I'm currently on episode 4. I suggest watching 'Another' during the night, alone, and.. without the lights. (if you've got balls)

Anyway, the basic plot takes place in a school, and focuses upon the death of a girl that happened 26 years ago. This girl was in class 3, the supposedly 'cursed' class, and it is believed by many students that the curse has been carried on. I'd say this anime is fairly well animated. If you're into dark things, suspense, death, etc I suggest giving it a shot. Here's the link to episode 1: http://www.gogoanime.com/another-anime-episode-1