As per usual for the Nendoroid Petit lines, the girls-- Saber, Rin, Sakura, Illya, and Rider, plus a pajama!Saber --each have an alternative face and a prop, from swords to kitchen supplies.
Though from a purely aesthetic standpoint I'd be okay with any of these. I'd probably prefer not to get Sakura or pajama!Saber, just in favor of getting something a little outside the ordinary, myself.
Still though, I think I'd pick Rider if I could. How often do you get a figure complete with magic summony-lookin' circle, after all. Who would YOU take home?