Windows 7 was basically a fantastic upgrade from Vista, probably the best Windows from a holistic perspective. Windows 8 didn't really take anything major away, and if you deal with the start screen or replace it with the start menu using one of the numerous alternatives, the Windows 8 desktop is even better than 7's.
From Snow Leopard to Mountain Lion, they removed all-window expose (then brought it back), removed spaces, removed any sort of useful multi-monitor support, and all they added were iOS-ifications - things like "power nap" and "Notes", and made the OS uglier and grey.