I've used all three. The Mac was easy to use after I got used to it, but it sucks balls because there is no easy way to disable mouse acceleration. Linux would be awesome, almost any distro, if the drivers worked with my dual card setup. Nvidia Optimus crap depends on Windows 7 and the card can't be used without Optimus, even if the integrated card is disabled. I am stuck with Windows on this laptop because it has drivers.
Oh and I can't afford a Mac
Oh and I can't afford a Mac