Shadow Hearts: Covenant: It's always gotta be Yuri, Karen, Joachim, and Anastasia. Every time!

FFVII: Cloud (only because you have to, but I'd probably keep him in anyways for the damage), Tifa, Yuffie/Barret/Red XIII.

FFIX: Zidane, Steiner, Eiko, Vivi. Every time! Vivi's magic is fairly useless towards the end of the game, and I'd probably use Garnet for her summons instead, but Steiner's magic sword is still pretty great, so I keep him in.

FFX: I know based on the nature of the game, you switch people out. But my main party is Tidus, Auron, and Rikku.

FXIV (heh heh): Me/Plum Jujujbe, Dat Matt/Haru Elric, Shauna/Sheetle Bug, Tomu are my favorite people to do a party with! Melissa Yuri is also p. great too but she hasn't been around so much.