I'd take the JBLs Steven linked before taking the B&Ws. Here is the review of their big brother and should be comparable except in bass extension (there no slouches though).
The JBL HDI-3800 84lb beast of a floorstanding speaker features triple 8" bass drivers and an advanced compression driver and waveguide. We review it to determine if it lives up to the JBL heritage.
www.audioholics.com
That's what you want in a speaker. Neutral and the same on and off axis (nearly)
The B&W will not a bad speaker, wont be able to claim that.