Bill, I just re-read your opening post.......properly this time
I'd say the Red verion is better, more natural (unpopular comment to follow:
)
The trouble with DSLR cameras is that some photons will hit blue filtered photo sites (as they will with filtered monos too), and sometimes they are not treated correctly by the 'debayering' of the raw image. Any debayered image is an estimate based on adjacent pixels. This sometimes leaves a blue/magenta cast in the image that should not be there. This is only an issue with Astro-images, not terrestrial.
Below is the blue sub frame from the previous M8 that I posted. Blue data is there alright, however in a ballanced colour image it will be fully suppressed in areas that contain stronger Red and or Green signals. The M8 image data that was acquired by Jim Misti, has no bayer matrix to interfere with the final colour result.
Having said all that, Astro-images are largely art and so this allows for a lot of artistic expression.
Your red version as I said looks more realistic I think.
Sorry for misreading your original post.
cheers,
Doug