Computer religion is just as polarized as any other facet of human existence, and even if you use the same OS, there's usually something else you can find to argue about. In the Linux world, once you've got over the argument about using Linux, and then which distribution to use, the next argument is usually which desktop environment to use. As I've explained before, there are loads of choices if you want them, but the majority of Linux users employ one of two solutions - Gnome and KDE: