Billy: Hey dad, whats an operating system supposed to do?
Dad: Well Billy, an operating system is supposed to provide an environment where many different kinds of software can run well.
Billy: But Linux, OSX, and Windows 7 do that well! How do I decide?
Dad: Well Billy, you have to now assess what kind of software you're going to be using. Which OS looks the most appropriate now?
Billy: Well, OSX is good for graphic design, but nearly all of its programs also run on Windows 7 or have comparable software also for Windows 7. Linux has a lot of great software, but just can't really compete really with the huge libraries of software for Macs and Windows.
But in terms of number of software available, Windows 7 seems to have the most. It also runs new and upcoming games, and also runs classic PC games while XP is left in the dust without DX10.
Dad: There you have it son, Windows 7, which is an operating system, runs FUCKING EVERYTHING!!!!
SO STOP BITCHING UNTIL THE OTHER OPERATING SYSTEMS CAN COMPETE!!!!!!!!!!!!!!