OLD FMA:
PROS: TOuching storyline, Very emo-ish style, very sad, despressing, serious, awesome in every way.
CONS: after ep 26+, the story doesnt seem related. THe first half and second half macam tak ada connection.

COnclusion: THe old FMA had a happy ending, but has really unrelated storyline to the begining 26 ep cause the anime made up a story of their own.

NEW FMA:
Follow everything exactly like the manga. EXACTLY.
COns: In my opinion, the new FMA is too joking or jolly, and not serious enough. they even put jokes in serious parts. unlike the first FMA, this fma tak cukup emo and serious.( but recent episode not that jolly already)

Conclusion: Really good, but should cut down on the joke.

watch both lol