The recent images from the RX1 on the various websites actually look pretty good to me, considering they're OOC JPEGs from pre-release firmware. Most seem to be shot with in-camera sharpness set to 0, and they sharpen up nicely in LR. I have downrez'd a few to 15mp, matching the pixel dimensions of the DP2M, and they look really good. It takes a lot of guts for a camera maker to put pre-release gear into the hands of reviewers and allow them to post full-res images online. Leica, for example, have hyped the new M to death but have not yet posted a single image.
There's no doubt that images from the DP2M stand out from the crowd. But the RX1 images display more consistency (i.e. no weird color/effects) and are far more diverse, ranging from shots in good light to ridiculously low light and the 35/2 on full frame provides for lovely environmental portraits with that trademark Zeiss look.
The DP2M lens is possibly better, however, a slow 45mm lens (in 35mm speak) doesn't exactly represent ground breaking optical design. Given the limited high ISO performance of the DP2M, the lens should really have been an f2, which is fairly ubiquitous on high-end fixed-lens cameras nowadays.