It is most certainly all subjective. The idea of "High-Fidelity", or being 'true' to some objective concept of what the music is "supposed" to sound like is both absurd and contrary to what the enjoyment of music, or any art form, is all about. More to the point, it just doesn't matter. It reminds me so much of a dog chasing its own tail in circles. The ultimate goal for me is when the gear gets 'out of the way' and I no longer pay any attention to it at all, and am totally absorbed in the presence of music. My idea of what that sounds like is likely going to be somewhat, or completely different to what someone elses idea of what that sounds like might be. The same way you might choose a different tennis racquet, different auto, different flavor of ice cream than someone else...whose to say one is "better" than the other in objective terms. Each may suit a different individual and become the 'best' in their experience...whether or not some collective somehow decrees one or the other widget to actually be the very "best" widget, really should not matter one wit to anyone. Find your own "best" - you are human after all and cabable of your very own set of distinctions, and certainly prone towards making meaning out of everything you experience.
Marco
