I usually leave mine with the default names, now that I write fanfic, but I used to rename them, usually in Latin. I can't remember anything except that I called both Brothers "Minotauri."
My mother named all her aeons random fantasy names like "Varrell" and "Baruka," but dad named them as follows (in all caps):
Valefor: BIG BIRD
Ifrit: HOT PANTS
Ixion: SPARKY
Shiva: MADONNA
... and I left Utah before he got to Bevelle, so I don't know what he's named Bahamut.
Mom did, however, named Tidus Ali Öops.
My mother named all her aeons random fantasy names like "Varrell" and "Baruka," but dad named them as follows (in all caps):
Valefor: BIG BIRD
Ifrit: HOT PANTS
Ixion: SPARKY
Shiva: MADONNA
... and I left Utah before he got to Bevelle, so I don't know what he's named Bahamut.
Mom did, however, named Tidus Ali Öops.