Pffft all of them kill.

What? Not allowed. Okay.

Kill - Hojo
Smurf - Heidegger
Marry - Palmer

Hojo is just an evil scientist, so he cannot be trusted. Plus he's evil. Heidegger is a creep, but I guess I could just gag him during sex to avoid listening to his laughing. Palmer is unassuming enough to marry and take his money. But ugh. Yeah, all of them are bleh.

Right, Battle of the Ice Queens:

Celes (FFVI), Lightning (FFXIII) and Lulu (FFX)