Mac OS X, but he'll deny it
-Lashiec
Yeah right ... have you seen the price of Apple hardware - you can buy 3 or 4 PCs with higher spec hardware for the price of the cheapest iMac!
Not only that Mac OS X is suffering from the same interminable heaping of old code as Windows - it is by definition one OS built on top of another before you start and every version brings a new layer.
Plus to keep up you have to buy a new computer every 6-12 months.
I suppose if Windows 7 or 8 is the new OS from scratch that people is demanding, that would fit the bill.
I am sure there are many at MS that would like to do that but it will never happen - by Version 8 you will need an HD-DVD drive just to install Windows and larger hard disks than are currently available. Graphics cards will need more memory than Windows currently supports for the pretty desktop and DRM will be so embedded you won't be able to log on with written permission from Sony, Paramount and countersigned in person by Bill G!
As for Linux, well, maybe they'll fix their way.
Nah - it's designed by geeks, for geeks. They are very vocal but numbers are so small as to be insignificant (it is estimated that the number of Linux desktops out there are fewer than half the number of Macs - and that is pretty small. Servers are a different matter - but how many people run servers). The only way Linux will take off is if the OS is unbundled from new PCs and you have to purchase an OS with your PC - THEN and ONLY THEN will Linux look attractive (or even visible) to most users - and THEN and ONLY THEN will Linux look interesting to hardware and software vendors.