The thing is, none of them would be charismatic enough to pull it off. Heck, I'm horribly uncharismatic in real life (though if you get me in a one on one interview, its actually the opposite - I'd likely be able to get any job I wanted to and had the qualifications for if I was guaranteed an interview.). However, I do not wish to create a real world Sith. Its not practical without the main thing the Sith revolve around, the Force. Not to mention that my personal beliefs are more neutral and gray. I merely Role Play a Sith as, to me, Role Play is a form of acting. Its no fun to always be cast as something so similar to yourself. Self-inserts are frowned upon in Fan Fiction, why should it be any different with Role Playing Games?