I compared MA gold/silver floorstanders with B&W 704's and B&W 805's using Musical Fidelity seperates. The MA's are smoother, with more bass. However, I prefer the B&W sound. B&W, to me, have the perfect mids and tweets. The MA's loose their mid detail due to movement, hence the bass response. And, the tweeters are not as good as B&W's(IMO).
It's a close race. It comes down to preference.

After all of my listening, I had my choices in order. There may be better speakers out there, but these were the best available to me within my budget.
MB Quart (QLS-830)
B&W (704S)
Monitor Audio (RS6)
If I had the money, I would've chosen B&W 805's or higher. Even though they are bookshelf, they still best the 704's and RS6. I even liked them better than the MA gold GS20 version at the time. I don't think they were called GS20 then. They were the same size, and had the same amount of drivers as the RS6.
Paradigm was on my list in the beginning. As soon as I heard B&W and MA, they were no longer a part of the plan.