If you want Sony's natural color rendition, you can not consider it (but many people like the Hollywood / glossy picture, then ok), and Nikon needs post-processing (there is a bias to the same place as Sony, but not so eye-catching for natural lovers). Here in RAW and JPEG you will usually get natural colors right away, but sometimes the camera misses the white balance. Energy efficiency is one of the main reasons why not the Canon R/RS. Another - I like to shoot sunsets with a tripod and I'm afraid of overheating of the matrix in the mountains / in the south / near the equator. Third - optics are 1.5 times more expensive for mirrorless ones.
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