As IT system engineer as profession, i prefer windows, even if it has it's downsides also.
Mac is great if you don't expect to much, and if you're not very litterate in IT, it's safe because it's hard to break. But it's also very limited in what you can do with it. So for a nerd like me very boring and frustrating.
Linux is way to complex for what it is, and altough i understand it, i don't want such an complex envirroment for daily use, and certainly not for a music station that should just work. It's great as server software or for technical purpose. But it still needs a lot of work to work as smooth and intuitive as the two others.
Windows is easy for me, I know it inside out, and work all day with it from all sides. And the days of the crashing windows XP and Vista is gone since lontime. Since win7 windows is very stable and solid build. The user interface is sometimes a bit a mess, but not the functionality or stability.