Story: Rosario + Vampire is average and very boring. The plot is basically like all of those Sailor Moon episodes where they have really no meaning. There's a ridiculous amount of fanservice with the main Protagonist receiving a nosebleed every two minutes.
Art: I thought the art was fine. I guess there wasn't really anything wrong with it much.
Character: I thought the characters were made poorly. You see many types of these characters in these sorts of love comedy's. One single useless weak guy surrounded by amazing gorgeous girls. It's almost like Ichigo 100% except for the fact that it contains supernatural beings.
Enjoyment: I really didn't enjoy this anime very much. The pervertness and fanserive just totally grossed me out. =C I'm sorry.