Hello Paul,
Not to be argumentative, because for one, I agree with your list of important priorities. But, the sonic attribute(s) that is most important and captivates the listener and makes them think .. "maybe this could be real" ... is subjective and will be different from person to person. For some it will be dynamic linearity above all else, someone else will say correct natural timbre/texture of tone, and yes there are those who will say it is the palpable images within the sound-stage that is most important to them. IMO there is no right or wrong.
Best,
Tom
