"As you’ll see in my Recommended Nikon DSLRs article I posted simultaneously with this, the D7200 joins the D810 as the only two current Nikon DSLRs in my “great” category (as opposed to just really good DSLRs). It’s a fine camera. No, it’s not a D400, but that doesn’t make me like it any less. A lot of us are going to be heading out to our favorite wildlife sanctuary with a D7200, and I doubt we’ll be complaining about much, if anything. The D7200 will do me just fine until a D400 comes along."
Personally I am using 2 FX DSLRs - D800 and Df, and 1 DX DSLR - D3200 (when I want to go small and light). But if you want a one-camera solution and want DX, I would go with Thom Hogan's recommendation.