FF12:Balthier; Interchangeable weaponry + Blank Slate + Snark + Accent
FF13:Hope; Powerful, all-around magic user + He grew a backbone near the end of 13
FF13:Fang; Heavy-hitter + Human shield + Debilitation + Snark + Accent
FF10:Rikku; Thief + Alchemist + Upbeat attitude
FF10:Auron; Piercing abilities + Awesome Limit-Breaks + Giant Sword!
FF8: Squall; Gunblade + No-nonsense attitude + Leather
FF1: Black Mage/Wizard; Powerful magic spells + My favorite out of the original six
If sequel/side/temporary characters were options I'd have:
Also, since Summons are such a big part of the games I think we should choose seven Summons (one for each character).
FF8: Diablos-Hope; Demi weakens enemies, than Hope finishes them off with area affect spells.
FF8: Syren-Rikku; Pair the spares.
FF10:Bahamut-Fang; 10's Bahamut is so much better than 13's.
FF10:Ifrit-Squall or Noel; Physical fighter + magic user.
FF10:Shiva-Auron or Paine; Physical fighter + magic user.
FF12:Cuchülaïn-Black Wizard or Larsa; Curaja
FF13:Odin-Balthier; A leading man needs a steed.