Thanks for all the comparisons, Rich!

As Rick stated, you need to look pretty hard to see a difference, and when you do, it can go either way. I've been wondering about picking up a 1DIV (refurb if they come available when I have funds), but this set of shots really suggests I shouldn't bother, but rather just use the 1D X.

I recall that we previously concluded a cropped 5DII vs. 7D gave basically equivalent results from an IQ standpoint, assuming 8 MP were enough for desired output. I wonder how a 1D X +/- 1.4xIII would compare to a 7D with the former cropped to the APS-C AoV?