Ao no Exorcist reminds me of a combination of bleach and beezlebub. The story and characters are fairly generic. You got your average shonen protagonist who has demon powers, and a super cool sword, but he doesn't want to be a demon so he against his father, Satan, and all demons. He has a calm and calculating brother, whose weapon is a gun, and there is a very shy girl. They fight monsters together and go to school, but despite it being so average and combining popular manga it manages to entertain me and enthrall me. It knows when to be funny and when to be serious, plus it has some good art. All in all its worth a read.