I recommend chaos;head to people.
That one had a good if generic ending. Not so with shows like Gungrave, in which the anime had a worse ending than the game it was based on.
Chaos;head is not a show you watch for the ending, it's a show you watch for the first 5-6 episodes.
Also, I got really bored this weekend and instead of writing decided to watch Mnemosyne, Shiki, and then Ghost Hound. All three of which receive a B. Mnemosyne would be higher but it's too short and almost hentai (which isn't really necessary tbh). Shiki has timing issues. Too fast at the beginning and too slow later on, otherwise it could be better, plus the ending couldn't get much worse. Ghost Hound was really good until the end, when it started falling apart. And now I am both out of things to watch and thoroughly bored of anime, which is fine because somehow I have a term lab report due 2 weeks after the last one. <_>