We stayed at the Polynesian concierge (garden view) from December 19th through the 23rd for $198 per night. I had the opportunity for AKL concierge for $229, but couldn't get all four nights and did not want to change hotels on this trip. I don't usually stay concierge unless I can get a really good rate, but what with AAA, annual passholder, Disney Club and DVC I have access to lots of discounts. Actually I think this last trip was a discount offered to the public, but I can't recall the name of it at the moment -- "Embrace the Magic" maybe? It was available at the Disneyworld website for only a day or two during the latter part of October.
I haven't heard any reports of PBH concierge, but have heard that HRH concierge is not as nice as Disney concierge. I expect I will find out after our trip in May. My personal first choice are villas and I would happily forego concierge to have separate living areas and that is generally what we now stay in at Disney.