Dirty_Jerz
Ethiop
It has the best limit break building system,
sphere grid - god tier leveling, so much so that Path of Exile took it.
You could replace Tidus's dumb ass in battle all the time.
Auron
Dem Summons - Yojimbo ftw
You could learn Al Bhed - any other MMO's teaching muhfukkas a language!?
Custom battle commands during certain boss fights, which could either weaken or make said monster miss a turn.
Auron.
10 was special though...the sphere grid should become a staple in more FF's
What you know about writing down al bhed with pencil & paper irl