To me, the best parts of the game involved the music
The "Boss Battle" theme (Still More Fighting) was all the
and One Winged Angel is the coolest piece ever.
But Jamesman is right, the AP system took so damn long.
Fuck, I only mastered Choco/Mog, Raiko-or whatever the hell it was, and Bahamut.
KOR took so long. I still haven't got it past the second level
Ultima should have been more powerful though... and I hated how you couldn't do more than 9999 damage (that's why some limit breaks are gay)