The company I work for develops windows application.

My job is, to "transfer" the UI of the windows application into the web, therefore I must have a computer in which these applications can run, so windows it is.

And on my private pc it is windows because most of the time I a playing video games, record them, live stream, record my e-bass and such things.

I worked on mac for half a year, but it is simply not mine. It has great features but I just don't feel well with it and on linux it's the difficulty with programs like photoshop and other thinks.

If I would set up a clean programming machine i would definatly choose a unixsystem

My main reason (for my professional work at least) is native IE and Edge for testing purposes. Other than that I've worked on Windows, Mac and Linux and I don't really mind with which I work.

At home I run ElementaryOS (Ubuntu based) and that works just as fine as Windows 10,which I run at work. It's mostly a question of taste and of which tools and programming languages you use: a .NET developer is pretty much bound to Windows for example.

Tools may differ obviously, but I think you can develop on any OS