Meh, windows is fine. Most problems are caused by 3rd party drivers or software :/, and you don't see so many of these on other systems because they're nowhere as near as popular and so the error count is so much lower.
"Macs / Linux / etc don't get viruses!" - Nobody really botheres writing viruses for macs or linux :/
A windows user with some moderate sense doesn't get viruses. I don't use any anti-virus or adware scanner or anything of the like. All that protects me is my hardware firewall (though with perhaps the most common ports (80,25,21,8000) forwarded to me though) and my common sense.
Internet explorer, lol.
I see no advantage to using linux and most definately to using a mac.