too many to list really so i'll list my top 5

1. suteki da ne (ffx) (even got it on my mp3 player ^^, epic song is made of epic win)
2. eyes on me (ff8)
3. one winged angel (ff7)
4. melodies of life (ff9)
5. liberi fatali (ff8)

seems to be the one thing SE never screws up, the epic music XD