I like what Ed as the anime ended:
A lesson without pain is meaningless. That's because no one can gain without sacrificing something. But by enduring that pain and overcoming it, he shall obtain a powerful, unmatched heart. A fullmetal heart.
Overall, that single thought of Ed is the main moral of the story, and I guess that's what we all realized in the end.
I will be mentioning the ending story lines of the different characters in FMA. If they are not especially mentioned, then that means that they remained as in in their life.
1. Edward Elric
2. Alphonse Elric
In the epilogue, it is implied that he is romantically involved with May Chang.
3. May Chang
4. Ling Yao
5. Roy Mustang
7. Yoki, Heinkel and Darius
9. Selim Bradley