My Dad was a pro. Piano player and piano tuner. I have been tuning pianos for the last 60 years. After tuning a $70,000 Steinway I had the opportunity to tune a $125,000 Bosendorfer (spelling?) I thought the Steinway had a better sound.
My point, the best piano sound is what sounds best to you. My preference is full round mellow sound.
Keep searching/creating for a piano that sounds good to you, John C