Comment My OS of choice depends on the task at hand (Score 1) 1215
In my house right now I have a NAS which runs a custom Linux install, a Media PC which runs XbmcBuntu, an Android tablet with CM10.1, 2 laptops with Windows 7 and 2 desktops with Windows 7.
I generally prefer to use Linux for any device that has a dedicated task where the hardware won't change. I prefer Windows on laptops though due to ACPI as generally it just works better on some of the odd chipsets used. I like Windows on a desktop for a few specific apps and for gaming. Yes I could use a combination of Steam for Linux and Wine to play games but there is a small performance penality in Wine and compatibility issues still.
My current plans are to stick with Windows 7 SP1 on my home desktops/laptops until it is no longer supported as I have a burning hatred for Windows 8's Modern UI. Once Windows 7 SP1 is no longer supported I will see what each platform (OS X, Windows and Linux) have to offer and decide what to do from there. If I had to switch tomorrow? I'd probably put Debian on all of my devices.