I've been shooting the two side by side, hoping one would win out. So far, for me, the RX1 betters the Leica only in autofocus, macro work and price. I read rumblings everywhere of people criticizing the M9 sensor as being long in the tooth and outdated, well damned if it doesn't better the Sony on most shots, I can't find fault, it seems to render exactly as my eye sees things. The Sony on the other hand, is clinically good and a resolution demon, but to my eye, lacks character and depth, clouds appear more 3D with the M9 as opposed to the RX1 sort of flattening everything out. I would like to know what others have found.