As far as M+ goes,
Taking a cursory look at +7 mists parses, comparing the 25th best parse of every spec it looks like Ret and both Deathknights are a little hot, (1.3-1.4m ) and Feral ( 1.0m ) and BM hunter ( 850k ) are low.
Everything else seems to be sitting pretty balanced in the 1.1-1.2m range.
But 850k to 1.4m isn’t a great spread.