We have a pond, and for years I've been trying to get a dragonfly in flight. I go out with D7100 and various lenses, and try and try, and I've come pretty close a few times. Earlier this summer, my wife and I were down there with a granddaughter, taking snaps of one sort or another, and my wife, with D7200 and 70-300P lens, notices a dragonfly going by. Bang bang. Nailed it in two shots.
Being of course a generous and impartial judge of things, I suggest it's obvious that the D7200 is superior.