beat the whole game using only squall (and laguna). didn't level untill 3rd disc when you get cactuar, at which point i equipped: spr bonus, hp bonus, str bonus, vit bonus and leveled to 100 with these abilities. then i junctioned as necessary for maximum stats.
for defensive purposes: 50% resistance to all elements and absorb 50% of fire/ice/lightning. immune to berserk/break/confuse/death (the ones that take you out of battle). i also cast protect, shell and haste before each battle (none of which alters spr/vit/speed so actual stats are much higher than listed). before buffs max vit and hp and almost max spirit. 22% evade
for attacking purpose: every attack of mine casts poison, silence, darkness and curse. had lion heart early in disc 1. max strength and hit very high spd
for collection: got all cards and gf's and had 99 heros. solo'd omega wepaon.
total time: 54 hours 18 minutes.
http://i889.photobucket.com/albums/ac98/sexystud1234/ffVIII.png