If you want security and privacy, you should consider OS X or Linux/BSD.
If you want to play games and let Big Brother keep an eye on your machine, go with Windows.
DYED_IN_THE_WOOL WROTE: "If you want security and privacy, you should consider OS X or Linux/BSD. If you want to play games and let Big Brother keep an eye on your machine, go with Windows."
Isn't OS X just for Macs? Can it be used on a PC?