No direct experience Sonos Faber, but I have always seen good things, even about their lower-tier product.
I'm never one to be bashful about my dislike for B&W. Conversely, I found my time with Monitor Audio to be much more pleasant. Not certain how the MA Gold or Platinum compare to the B&W 800 Series, but that would be another option if you are in that level of market.
Likewise, Some of Jim Salks designs should compare quite favorably... Thinking Song-3 Encore or BeAT, SS 9.5. I have heard the 9.5 and felt it to be a stunning speaker. My favorite at the CAS last year.