Google OS will be YALD, and therefore boring. MacOS is YALD (YADD?), and also boring. Linux is boring. Windows is Boring. AmigaOS is boring.
All OS's these days are boring. What isn't boring is the stuff that runs on them. Right now the most (general computer, including games) stuff runs on Windows, just based on scale and availability. I've got a limited amount of time to do "stuff", and can't be bothered with dicking around with WINE just to smugly say "HA! I don't run Windows to play games!"
I won't pay the Mac Tax (by the way, it's Mac not MAC, the latter is the acronym for Media Access Control and has nothing specific to do with Apple computers (the former))...and then pay for a Windows license on top of that to play PC games (and be bothered with rebooting/running some kind of virtualized PC session).
So for me the place to be is Windows. I find 20 year old 2d platformers to be depthless and dull and they just bore me to tears, so running a virtual amiga environment ain't gettin' it either (although there were some great flight sims and some not too bad original FPS's on the Amiga, too!)
Point is, there's a place for all OSs, because at the end of the day, what counts is what you do with it, not how "responsive" or for god's sake how "silky smooth" it is, nor how fast it polls the joystick port, etc. etc.