Along the lines of BioShazard, I like the idea of "survivors"...it's a lot more special to have "the last living _________" than a random Republic soldier or something. Gives them a reason to be "special" enough to be in my
Not along the lines of BioShazard, I prefer humans over aliens. Does that make me "species-ist"? (...lame) Anyway, I just always found myself more drawn to the human characters in my party than the Twi'ilek, Wookiees or droids.
I want more melee party members and less ranged. There are those moments in the game where you really just need somebody with high Strength to give you some backup in a lightsaber fight.