Most favorite of favorites have to be: Vic Mignogna : Ed(FMA), Tamaka(OHSHC), everything else he's in. Travis Willingham: Mustang(FMA), Ginko(Mushishi), everything else Chris Patton: Greed(FMA), Creed(Black Cat), everything else too! most of my favorites were in FMA. :]
For me, my brother really got me into it. At first he told me to watch avatar, and i noticed how the animation was so different, and found out it was like anime. Then he told me about Fullmetal alchemist, and ever since i watched it, i've been on an anime high.