Cloud, Barret, Cid
all best weapons' Cloud had Omnislash, 4x, a Mime, and KotR, ; Barret had Catastrophe (haven't played in a while i think that's lvl 4), and Ultima set with quadra, and a Mime; and Cid of course had Highwind, along with Mime, Phoenix/Final Attack, and like a master summon or something.