Nikon D810 FX-format Digital SLR Camera Body is really great because of two key features - the highest resolution currently available in a DSLR and 30% faster EXPEED 4 image processing engine. Plus, also has New 'RAW Size S' 9MP Raw mode making it one of our top recommendations.
Nikon D500 DX-Format Digital SLR (Body Only) is really great because of two key features - built around the ability to focus and shoot very quickly and Anti-flicker option for working under artificial lighting. Plus, also has 2.36M-dot tilting touchscreen display making it one of our top recommendations.
Nikon D750 is great because it has Full HD 60/50/30/25/24p video, however many customers complain about Tends to slightly overexpose which is especially true given that it costs $1,896.95.