i love this, i'm sure a huge nerd, but i listen to FF music everyday and am currently taking piano lessons to learn how to play them.
my favorites/most played:
Via Purifico -ffx
One Last Hope- ffxiii
hymn of the faith - ffx
so many more too, i love FF. The music is such a huge part of a video game, i feel Square enix is just cranking out new games (like one per year) and really aren't taking the required time to truly develop more master pieces (both with music, characters, plot, everything).