You should get the B&Ws home
Robot,
I bought all (almost) Axiom speakers to audition them at home because I simply couldnt decide based on comments from other owners. But the forums helped me shortlist the speaker brands that I wanted to try. Also it goes hand in hand with what is convenient for you. For me, returning speakers from online sellers was not a hassle and as far as showroom auditioning goes, I had a local dealer who carried PSB and B&Ws.
So I went ahead and ordered Axioms, listened to them for a few days and then went to local dealer with the same CDs and auditioned the PSB (Alphas) and B&Ws (600 Series 3). My first impression was that both PSB and B&Ws sounded better than Axiom. I went to the dealer the second time and listened just the B&Ws again (I heard 600, 601, 602, 602.5, 603 and 604) I really liked them and told the dealer that I would like to audition them at home. After initial hesitation, the deal we made was that I would buy the speakers, but the ones I can take home were the ones on display. I was able to keep the speakers for 2 days and buying them was sort of security deposit for the dealer. This worked fine for me and I took the 602 and 602.5 at home.
End result was that the B&W are great speakers, definitely laid back than Axiom. They are better musically than the Axioms. But Axioms beat the crap out of any speakers (IMO) when it comes to HT application. I did not like the B&W center channel when I heard it in store. So for me, since the speakers were required 70% movies and 30% music, I went in for Axioms.
I have the M60, VP150 and QS8. I like them and they grew on me. Now I like the music too, though I think Axioms can do better musically.
But overall, these speakers with my PB12-NSD kick a$$. I love what I have.
So the point is...buy what you like, but dont go by what you hear in a store. Get'em home.