This question can't be accurately answered until the talent system is put into place. As it is right now, the only thing that sets you apart right now is equipment and appearance.
If you're just concerned with customizing your character's looks, all creatures of the same gender and race use the same base model, and you can change their face, skin color, hair color and style, and sometimes another factor like beards, facial markings, etc. I don't think I've ever met anyone that looks *exactly* like me in that regard, although it's hard to say when much of that gets covered up by equipment, which often can look a lot like what everyone else has.
Only the exceptions can be exceptional.