Good points! Tom mentions contrast could possibly be superior with Zeiss optics....Doesn't contrast and resolution-go hand in hand?

of course, using the same film and development etc., larger format takes the day-if image size is proportionate-

My question is-look at Suzanne's T.R. and Miss Blinky, taken with Leica using 90 mm. The frame is dominated by the facial portrait.

If she were to take the same portraits with her Mamiya using a "normal" say 80 mm, keeping the image roughly the same size as in the Leica 35 mm shot-croping and enlarging the facial image to 8 x 10 or 11 x 14, and enlarging the full frame of the Leica shot to 8 x 10 or 11 x 14-would the traditionally touted superiority of the Leica optics be evident?