jeremy wrote:

I've read about several informal "blind" tests where the participants were
unable to determine which camera took which photograph. Bob Monaghan did
one such test. So how much is Leica's legendary (or should I say,
"mythical") margin of superiority worth? Is there any photo taken with
Leica equipment that couldn't have been taken with a Nikon or even a
Minolta?

I suppose that if you're shooting with your back to the sun, close your
lens down to f/8.0, don't enlarge to more than 12x18 cm, turn a blind
eye (or two) to optical distortion, vignetting, bokeh, colour
saturation, soft corners and a few other aberations, then yes - Jeremy -
you might not be able to tell a difference.

BTW: You should add a footnote when you paraphrase Ken Rockwell...