I realize this is very subjective, but like most of the other musicians I know, my preference is that which sounds most like a live performance. That sound seldom seems to come with speakers (or electronics) which produce a "warm" sound, including many of the audiophile components and speakers highly touted on this site. The words which come to mind are "muted" or 'muffled" especially on the high end. Guess that puts me in the "neutral" camp. To each his own. Cheers.