I haven't been in every furniture store in Atlanta, but have made the rounds of quite a few, and I like Americana the best.  Their furniture is good quality and of course, if what you want is not in their showroom, they can probably get it for you.  I always enjoy browsing there.  Besides furniture, I enjoy looking at the wall tapestries they usually have for sale.
Pros:  Great service, parking lot, good-sized showroom, convenient location, not part of a mall
                        
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