I am pretty open on system. They all have their flaws after all. I just want a system that will cover combat, repairs, piloting, and social mechanics against NPCs (the last part only if our companion wants it).
Well, I am a little flexible on my character's feelings on the alliance, but he he won't be outright antagonistic. After all, the Alliance did give him a solid education, good training, a nice job and left him with some money, so he can't get too up in arms against them. I plan on his separation having been uneventful.
My character will not be against slavery (may be enticed to enjoy a slave, though not too roughly), but he is not extremely fond of risk. He is, however, uninterested in the decision making. This is why I like the angle of him being the owner but having hired a captain to run things and make the decisions.
As for sex, I enjoy sexual stimulation in my RP, but don't need a lot. I'm not a fan of non-con, and will likely play him the same way, but if the victim is an owned slave, then he might be able to just be uncomfortable with it.