Some of the things I really liked (without spoilers):
1) Every episode is connected and important to the plot. It is quite remarkable that an anime could do this over 64 episodes.
2) Character development is quite nice. At the end of the series, I could remember the name of several characters and could even briefly describe their personality.
3) Fights are amazing, especially the ones with Wrath.
4) Antagonists are really well-developed. I really liked Wrath, Gluttony, Pride (I was kind of terrified of him) and Kimblee.
5) The main characters (Elric Brothers) are not super-powerful. They do not achieve unreasonable things in their battles just because they are the main characters. They lose whenever the opponent is stronger and the conditions suits the opponent.
6) Emotions are subtly conveyed. Like when Ed feels responsible and helpless whenever his friends around him suffer, nobody has to say it, you can just look at him and see what he's going through.
Overall, I really enjoyed this. I am giving 9 and not 10 because there were some loose ties at the end, like:
(SPOILER ALERT)
What exactly is the origin of dwarf in the flask and what's its relationship with Truth? How exactly did the souls that Hohenheim scattered return the souls of Amestris' people.
And yeah, the jokes about Ed being short were too repetitive.
