For the most part, here at Audioholics, the party line is that if everything is running correctly, modern, solid state amplification operates to specifications beyond the range of human hearing. If you are objective about it, you will not hear a difference in amps. Many here talk of headroom, but even that term covers a tiny percentage of your listening experience. Put on a blindfold and no human can hear a difference between properly operating amplifiers. The same holds true for cables. Buy an amp for dependability, pride of ownership, aesthetics, or ease of use. But adjectives like warm, rich, and chocolatey are subjective terms that have voodoo like qualities....imho.
I just sold a Parasound HCA2003 that was running some large towers and center. It was well designed and looked sharp sitting between the silver lacquer towers. But then I hooked up an Onkyo receiver and honestly couldn't hear a difference.........jm2c.