If recordings were all equal and a standardized perspective was established then an agreement on brightness vs high resolution could be discussed effectively. As recordings, material and perspectives can vary dramatically, the answer is a moving target. I favor detail but with warmth and liquidity. As a former drummer, cymbals need to cut through with all their complexity and shimmer! I hate dullness and cloudiness. That's a big reason why I gave up on tubes;)
Is it too bright or is it high resolution?
It has been said in the forums that one mans bright sounding amp is another mans high resolution amp. Some amps and preamp combinations can deliver a high resolution presentation and to others this may be considered too bright sounding. Is there a fine line that can distinguish between the two? Personally I like very revealing & the fine details delivered but the wife says it sounds a tad bit too bright.