II am a month into a new pair of B&W 804D3’s and couldn’t be happier. Upgraded from 805S and the difference is astonishing. To be fair, I also upgraded amp and sources, so the whole rig is substantially better than what I had before. I have not heard the others in your list of candidates, but the people at my dealer sell Magico and told me that the A3 is a great speaker but felt the 804 is more natural in its presentation. The guys who delivered and installed everything told me that the 804 is their favorite in the B&W 800 series. The install and listen to lots of very expensive and well reviewed stuff so I give their opinion a lot of credence.
However, just like wine, everyone tastes something different out of the bottle, so go “tasting” to find your match.
However, just like wine, everyone tastes something different out of the bottle, so go “tasting” to find your match.