Linux. Windows is frustrating and buggy as fuck, and I hate Apple. Linux works perfectly, it runs all the games I ever play either natively (Penumbra, Neverball, etc.) or perfectly in Wine (Starcraft, Steam, yeah). The only thing I gripe about is that the printer I own doesn't have a Linux driver, but that's because it was a crappy one I got for free so I can't complain much anyway. I love the system, I love how everything's free and it's all so easy to make my own. I have access to everything, nothing is beyond my control, I never get viruses, it never, ever crashes or bugs out, it's all too perfect to be true, but it is true. And free. I love Linux. Yep.