Vivi could always get by with Osmose, I guess. It's hardly a party that I'd use regularly, but it's still capable of getting the job done.
Printable View
Zidane, Quina, Steiner and Eiko.
Zidane, Steiner, Vivi and Dagger is the best combo in my opinion.
Zidane's fast, Steiner possesses the hellacious "Shock", Vivi for amazing mob attacks and Dagger for healing and, of course, Ark summon.
Dragon Breath isn't a very good skill to use. It costs an outrageous 78 MP and isn't the best for damage. Dragon's Crest is a much better skill, costing only 16 MP and dealing 9999 unblockable damage.
Ultimate party: Zidane/Steiner, Quina, Vivi, Freya.
Zidane is equipped with Sargatanas/The Tower and uses Soul Blade and a maxed Thievery (if Thievery isn't maxed Steiner can be substituted in Memoria). Quina uses any skill that is needed and a maxed Frog Drop for damage. Vivi has Reflectx2, Half MP, and Auto-Reflect activated, and uses Flare and Doomsday. Doomsday is by far the best skill in the game, dealing 9999 damage and healing your party 9999 health. Massive Win. Freya uses Jump, Reis's Wind, and maxed Dragon's Crest.
Eiko best curer and has moderately good summons
Zidane Best attacker and is fast
Garnet Best summoner and okay healer
Vivi Best blackmage and is just adorable.
I never used any party other than Zidane, Freya, Vivi, and Dagger. Steiner was like Level 26 when I finished the game.
I beat Ozma with Zidane, Steiner, Freya, and Quina, but I like to fight necron with Zidane, Steiner, Eiko, and Quina.
Quina is a surprisingly good "toolbox" is you get enough blue magic. I just Berserk Zidane with the Ultima Weapon and have him go nuts. Eiko is a good healer. Steiner has Shock. I would use Freya instead of Steiner, but for me, Steiner is a lot faster, has about 2k more hp, and isn't worthless when he has no MP.
Jump takes a couple turns to work. In those couple turns, Steiner easily deals over 9999.
Zidane, Garnet, Vivi, and QUINA :quina:
Steiner doesn't have any useful skills except for Shock/Climhazzard and Iai Strike, and Shock/Climhazzard is VERY expensive. Dragon's Crest takes 16 MP, so Freya will be able to deal unblockable 9999 far, far longer than Steiner can. Freya also has Reis' Wind and White Draw, which make her more useful than Steiner. Jump takes 2 turns at most to use, and she can't be targeted while she's jumping.
zidane - have to use him
freya - dragon's crest, reis's wind, jump, etc.
steiner - shock, climhazzard, stock break, attack, etc.
eiko or dagger - white magic, summoning
Aeris, Zack, the 'AreSick guy' Sephi... oh wait. Wrong game.
Zidane, Garnet, Vivi and Quina/Amarant/Eiko.