Can we create a consensus list of the TONALITY of different amps/preamps/brands?

I wouldn't mind seeing something like that but this is maybe 10% listed here! just like  one person said, Where is XXX Brand. And to those who say there can be no consensus. That might just be because there is NO Consensus on what constitutes personal feelings and not FACTS. If someone can come up with ;factual reliable definitions for the different qualities this could be done. You can define Volume or power or frequency response, but when you try to include factors that people can't even describe of at least have a consensus on what they mean, and these same people claiming that their feelings are important to the discussion, then you just threw any definable factor out the window. You are allowed to have your feelings and likes, but don't force them on the public until you can actually evaluate what a particular sound is and possibly even measure it.

+1 @pmm 

+1 @mitch2 

OP, do you have speakers that are revealing enough to discern the nuances of the electronics upstream? Buy the best speakers you can afford for your listening room and then match them with the best amp for those speakers.

Bruce

As many have stated, there are way too many variables.

I read a review of a DAC once where the reviewer listed the components he used in the chain. I happened to have a lot of experience with the USB cable that was used. With that point of reference, the review lost a bit of creditability as I knew the shortcomings and sound signature and what one was gaining (bottom end) and losing (mid details) using that cable.

It can be a very delicate balance when you get into more revealing systems. Sometimes, it only takes one component or cable in the chain to color the entire soundstage.

I find even the limited info here somewhat useful. I also believe in objective reality- people know whether a piano sounds like a piano, and furthermore that long term satisfaction is achieved with more natural sounding components. The big problem I see is that the speaker - amp combination is critically important. I know from experience that none of the Pass Labs amps can properly drive Wilson Audio speakers, which are the only speakers I have heard which render a pianist n the room. Both Boulder and Spectral do, but the Spactral has a small edge in detail. 

There is a crap load of audio equipment for your enjoyment.  Regardless what anyone recommends  your ears are the biggest critic.