Design: Yojimbo FFX... I dig samurai-like characters like Auron and Yojimbo is basically a Samurai Aeon, I only ever got him once in my first playthrough of FFX. Ever since then I just got bored of battling and battling fiends in the calm lands and I never tried it again...
Usefulness- Phoenix (both FF7 and Crisis Core) I loved using phoenix in FF7 because it saved me so much from so many close calls in both Crisis core and FF7... it's basically Ifrit and phoenix down on both members combined
Favored- a Tie between Brynhildr, Odin, and Alexander from 13... I valued Sazh, Hope, and Lightning because of their balance as a team... sure I didn't have a sentinel or sabatuer... I always prefered buffing allies over Debuffing enemies because I had a hard time using Vanille prior to Nautilus and her debuffs worked well with Sazh's offensive buffs but it just didn't work so well in my head so when I chose my party members I went with Sazh, hope and Lightning but if I wanted to be defensive I swapped lightning for fang for a little bit of debuffing