Thanks for posting those comparisons, Thunderbolt!
The R3 release was - by far - the best version up till now. Anyone still watching the Miramax version is getting hosed on both video and audio.
I've been waiting for just this comparison. From your grabs, I certainly prefer the Criterion DVD to the Alto Media disc. And, as you probably know, the "green filter" look is typical of Chris Doyle/WKW and they've spoken out strongly against those releases that removed it (particularly "2046", which seemed to get more than its fair share of "natural color" releases). Of course, the CC release is DP/D approved.
I agree, however, that it is difficult to tell much difference between the DVD and the BD going by the Beaver's jpegs. I had a similar issue when deciding whether to import the HK-BD of "Days of Being Wild". The Beaver's comparisons showed very little difference, and I could only perceive the slightest improvement on my home computer with the better monitor. Still and with much reluctance, I ordered the HK-BD and hoped for the best.
My hopes were amply rewarded. Despite some typically dodgy subtitle translations, the HK disc looks immensely better "in motion". In fact, a direct A:B between my Tartan WKW-Collection release (upscaled to 1080i via Oppo) and the HK-BD (output at 1080i via Panny BD30) revealed that the latter had a much more solid image, far better colors, and much better detail (as well, it was derived from a much more pristine print). And - no small thing - a huge step up in audio quality.
There likely won't be as great a difference between the CC DVD and BD of "Chungking" as these are both derived from the same scan, but thanks to your graps I'm feeling even more optimistic that my much-beloved R3 actually will be replaced by an even superior transfer. I honestly never thought it would get much better than that.
One more WKW-related tidbit: Kino has announced that "Fallen Angels" will be one of its first BDs... hopefully rendering my (also quite gorgeous) Alto Media R3 release of that flick obsolete!