Although it differs slightly from my game scoring system, my Anime scoring system (or ASS) is basically the same: a five-level system including an Overall Rating.
-Plot / Story: how well-thought out the plot was, or how well the story arcs build into the main idea of the series. Out of 10.
-CD: short for Character Development. How characters develop, and how their relationships or interactions with other characters change them. Out of 5.
Art / Acting: based around character design, clothing and environment design, and above all, acting. Poor acting means a poor grade. Out of 10.
Rewatch Value: how tempted I would be to re-watch the series. Things like To Aru have a high rewatch value for me, while things like Helsing don’t. Out of 10.
Overall Rating: kind of self-explanatory. Based on the above factors (and my other personal feelings about the franchise or series) I will give the series a rating and an S through F grade, with high and low markers. Out of 50.