On the other hand, I myself normally make performance comparisons between images with no processing at all, apart from PSE/ACR's conversion to 8-bit RGB with everything set to 0. This restricts a comparison of acutance between cameras to the more mundane parameters of manual focusing ability, correct aperture, lens performance, sensor performance and so forth.
I mention MTF only because there was a handy-dandy edge in your original image which looked pretty sharp and I had the means to measure it. MTF for most of us can be terribly misleading and thereby hard to interpret. My first pic with the now-departed D90 was a hand-held shot of an A4 sized ISO target from about 4 feet away. The MTF curve was horrible! Not surprising, though. After mucho post-processing and re-sampling to web size, the MTF became quite respectable!