i do like the star wars ones, playing as mara jade or even daala appeals. or as the female dark jedi, i definately like that. I also like the alien/predator one you thought up. ive played them out in my head but never here.
How about this idea, im from a group of 2000 people that were put into cryopods hidden in hidden sublevels of norad mountain, not long before an invading alien race attacked earth and wiped out everyone. You could be a ships captain, or slave trader that gains access to the hidden levels, finding advanced weapons, tech, the works. after so long, only my cryopod works, so you keep me as your slavegirl, for your pleasure and to tell you how our tech works. You could be human, or a human/alien hybrid.