I never used my aeons at all.. you see Aeons .. are lovely.. but quite useless later on.
All I used them for is for dark aeon overdrive food.
I just maxed my stats, then you're faster and stronger then they are.
you do 99999 damage with every hit, and if you use a lot of quick hits it's even better.
take Dark Yojimbo for example I'm fast enough for him, if I use quick hit all the time he only gets 3 turns, and isn't able to use his overdrive.