Dave Cutler's skills aside, Unix predates Windows by decades, and to anyone remotely familiar with kernel development it is clear that the sheer quantity and complexity of subsystems stem from the fact that nobody but Microsoft can actually see, modify, and redistribute Windows' source code.
Unless you can actually say "here's why Windows is qualitatively better" and point out specific tasks Windows does better, I'll just point you to the fact that the internet infrastructure and most of the servers on it, along with every Apple desktop and pretty much every mobile device, run Unix.
