I have awarded 20 points to each of these two categories to several of my favorite series. To begin, Fullmetal Alchemist: Brotherhood has a great story and plot because it has a memorable story that begins with a premise centered around two brothers looking for the philosopher's stone. Eventually the series progresses to a point where the actions of the main characters could potentially affect the whole world.
Character development in FMA:B is excellent as we see how the main characters evolve throughout the series. Neon Genesis Evangelion is also an amazing piece of fiction. But for now, I will focus on character development in Evangelion. The masterpiece by Hideaki Anno is very complex and hard to watch because of how painful life is for most of the characters. Characters in other anime series have tough issues too, but I have not seen any other show that better conveys the psychological aspect of it.
Another series with 20 points for story and plot and 20 points for character development is Code Geass. This series, like the two mentioned before, has a great story and great characters. Something that I find interesting from Code Geass is that besides having an amazing conclusion and a masterful final episode, it has good but not great animation for a Sunrise production. It can also be argued that Code Geass is very unoriginal because it borrows many elements from previous series. Despite these minor shortcomings, Code Geass: Lelouch of the Rebellion proves that a great story and great characters are the keys to make a great series.
Next time I will talk about conclusion and logic.