My favorite things bout the D5 are it's incredibly fast and accurate auto focus, and it's high iso performance

I find that at those ISOs, you need to add +17% noise reduction luminance to hide the grain (noise).Spectacular fast focus

The improved focussing, ... all make it the go to (semi-) pro Nikon camera.

Very solid focusing performance, great dynamic range and very fast

I love to be able to pinch and zoom and slide around while zoomed to make sure no one was blinking, or double check that yes in fact the D5 did get perfect focus AGAIN

Great focus.