Move Ao no Exorcist (aka Blue Exorcist) to your watching list!
Awesome supernatural shonen with emotional punch and comedy bits. Some eps are better than others, but overall it was a great run. Fave is ep 10 "Black Cat". Oh my. Shiro rocks.
Hope they do more seasons. I read somewhere that the manga was going towards a less action arc, so the anime focused more on the fighting instead. I wouldn't have minded delving more into the slower stuff since those ended up trumping the straight up action IMO. Love all the supporting characters too.