Rebecca HailIn the Federation, a common citizen could now form a party and get elected on such a basis, (...)
Bwahahahahahaaaa... this made me seriously laugh. You know as well as I do that the "democracy" inside the Federation only exists on paper. Without corporate support a common citizen can do even less then an Imperial Slave. See "Birthright Wars" for details.
Seriously: If E:D were RL I would hope to be able to live in the Empire and not in this US of A with all its flaws turned up to eleven called the "Federation". All official lore I have access to emphasises the fact that Imperial slaves do have rights, are getting well treated (enforced both by law and their sense of honor) and do not have to worry about not being able to sleep in a proper warm bed with a roof over their head and having enough to eat AND also get medical treatment when necessary.
Of all the three superpowers the Empire sounds like the best place to live in to me.