Key differences to me are D7200 has better controls on the body, i.e. two command wheels, it has a better 51pt AF system, shoots lossless raw, goes to 1/8000 and has an inbuilt af motor, 100% viewfinder. It also has flash commander mode. The D5300 has a tilt screen, but 39pt af system and 1/4000 with only 1 command dial and no inbuilt af motor and 95% viewfinder. Tilt screen may be of use (isn't for me) but the D7200 is an all round better camera, it also has better build quality and better weather sealing. Both will produce excellent images.