Very good video. Great choices of musical pieces and piano libraries. I watched the video 3 times because it is so interesting to hear the differences. At the top of my list are Bechstein and Mercury. The runner up is the Black Grand.
Hammersmith Pro is the best. After this, wavesfactory mercury is very close. All the others are not that good for classical music. This was a great comparison, thank you very much for sharing this great samples.
Fazioli... also available in UI Labs and UVI and Italian Grand and F Grand... did you try the Ravenscroft 275 from UI Labs? So far it is one of the best I have tried... other ones I found at top are Pianoteq K2 and Bechstein
are you not a fan of Pianoteq? by the way... having the Chopin gives a nice comparison because I guess many users are familiar with it... do you think you can do Moonlight Sonata and Chopin Waltz in A Minor in the future?