I recently added to my Sony V Nikon page but was reminded once again of the inaccuracy of what appears to be calculated scores over at DXO. One of the best examples I am aware of is the insanely low calculation on the FE55 when used on the NEX7 vs the A7r.
DXO shows the FE55 getting half the resolution on the NEX7 as the A7r. In hundreds of tests I performed, the FE55 on the NEX7 was typically within 5-6% of the A7r scores.
DXOs 'guess-testing' isn't even in the ballpark. More here - https://sonyvnikon.wordpress.com/2015/03/16/nikon-d810-v-sony-a7r-with-zeiss-otus-85mm/