While I understand you had to make the cut somewhere, I feel that the highly intuitive handling of the GRD and GXR systems continues to get ignored by the media. Perhaps it's because they do not buy enough ads, perhaps it's because they are targeted towards a more "Professional" market. I don't want to get all grassy knoll and all but damn they are great cameras.
You mention that the GRD has only a prime lens as a major reason you left it out. Again, while not mainstream, there is a dedicated group of users (yes, I am one) that say it's one of the best lenses on the market today.
Nothing comes close in size, handling and quality of glass. I happen to put a black metal 28mm CV bright line finder on the top of mine and turn the LCD. Very retro looking and extends battery life big time when shooting in the cold.
As always a lot of good work in your review.