I wasn't saying linux is better. Personally I've invested so much in windows it would be hard to live without it. Windows is slow with somethings, but it's slower precisely for the viruses your talking about, There's just a lot of extra code going on in the background for protection and compatibility across multiple very popular iterations of the OS.
Linux has its +'s and so does Windows and OSX has its -'s, but I think it's good to not be completely dependent on one OS like I am, doesn't mean I'm gonna change my own opinion because of such a simple argument.
FYI: I don't have an AV running and haven't had any problems with viruses, because it detects all my programs and bullhorns my entire system. I just use good practices with downloading