Personally I lovED Hagane No KoKoro which means Fullmetal Spirit I think, when I first heard the song. Then after about a billion times of putting it on repeat.....it was put away.
hahahah So I loved that song. Then came Asu He No Basho my second favey. I don't know why exactly it's just the sound. Then I loved Returnable Memories, but it's a little too sad for me. It's still really cool though. There are like certain parts of the song that I listen for and love.
hahah and the part whit Ed's Voice Actor struggling to make her voice deep is really cool. First off Ed is still a kid. So I really love the sorta hoarse and strangled voice-ness.
Al's voice is just adorable. Period.