My latest System is Windows 8.1 which came bundled with my latest tower computer.
(Previously I had Windows 7...and before that, XP...which was nice...but SLOW!)
The very first thing I did in Windows 8, was to get rid of that awful desktop (touch screen?) display, and make all my files and folders display in the old Win '98/XP Mode...
...ie: Classic Mode!... ...!
..including my Start Menu...with its proper Start Button! ...>>> http://www.classicshell.net/
So, I suppose, for me, the only real advantage of the later versions is the gradual increase in operating "speed"!
...but I still prefer Z80 Assembly Code and "Sinclair BASIC" over all others!... ...>>>>
http://www.worldofspectrum.org/Z80.html
http://en.wikipedia.org/wiki/Sinclair_BASIC
Paul....lost in the mists of time!... ...!