Authentic stories and a real end! The first version of the series (2003) was quite good.
However, he omitted important characters, reduced the role of very important and decisive in the story, characters, invented new characters, altered and even to a very bad degree or completely changed (and even negatively) the story of some other characters and of course, had no end.
The end was given through the first film and it was inadequate, stupid and very, very bad.
This version of the series (2009), is not just based on the manga, it is ideal and much better than the first.
She respects her characters, describes the events in a rich way, does not lag behind in action, has an end and is one of the most satisfying we have seen / wished for.
Fullmetal Alchemist: Brotherhood, is one of the best anime series of all time !!!