I did, initially (10 years ago), see the digital scan as a great posibility for assessing a negative to print, but I soon found that it wasn't telling me anything of any use for aiding printing beyond the normal tools, obviously others mileage varies, but my experience didn't fit my 'workflow'.
Therefore, I can't see the benefit of trying to compare the two methods of image production when the methods are unrelated in how the image is resolved. The digital file won't necessarily tell you what is possible with the negative in the darkroom, a loupe, lightbox, proof and/or a couple of test prints in the darkroom will tell you that. I have scanned with dedicated film scanners and printed digitally with the best papers and printers, as have many of you, but most of the time it is the darkroom print I have in mind as the point of reference for the digital, not vice-versa.
Mark Walker.