This has been in my mind for a while now, since its somewhat confirmed there will be moral ambiguity (like a Sith who is not necessarily an as.s) What is your alignment preference regarding your main/alt characters?
Personally I think both my JK and JC will do whatever it takes to stop the Sith Empire, but my JC might become specially -greedy- regarding his own advancement in terms of "knowledge". My Sith Inquisitor will most likely be the good guy in a bad place.
That's what I expect at least, ultimately all my decisions will simply reflect my own persona. which is the reason why I was never able to do a single dark sided KOTOR playthrough, probably 3 or 4 hours in I would feel guilty over how much of an ass I was to all those people on Taris.