Well, in my opinion.The only way to truly compare something, like in an experiment, there must be a control, a non-variable. The way in which you play and where you play, how much or how little you dig in, how hard you pluck or how smoothly cannot be guarantee uniform, we are human after all.
I think you played the first one very smoothly and was your best, the second slightly harder and percussive and the last one, much like the first.
If people are really interested in going to the nth degree and doing comparrisons, there needs to be a control. The control would have to be a mechanical devive to guarantee consistancy. But thats kinda silly in my eye. But then, I don't get the need to take things to this degree, its mostly about the fingers.
My tuppenceworth.
I do hope I haven't created outrage, though this is basschat.