In terms of quietness and burn quality, I would go with the Pioneer BDR-2208 (which is basically a retail BDR-208M drive). In my experience, after going through several generations of Pioneer and LG BluRay drives, in general Pioneer drives give better burns than LG drives.
PS. The BDR-2208 is a Pioneer drive not a Panasonic. Panasonic (aka Matshita) BD-R drives are to be avoided at all costs. They are called MatSHITa for very good reasons :Z