I gotta go with Oldroadie here. While I prefer the Mac, my PCs have given good service as long as I don't use them on the net. I've had major, and expensive, problems with malware and hostageware on PC's that were used for more than the basics of my business. I no longer allow my point of sale computers to be used for anything other than strict business purposes. My back office machines are not allowed to be used for much more. I have a stripped down old laptop, separate from my network, that is used for anything else. But it is only connected via WiFi. I've had Macs since 1984 and have only been attacked once. That was during a political campaign in 1996 and I'm certain I was specifically targeted.
I take basic precautions with the Mac but since 96 I've noticed no problems.

We all like to think of ourselves as rugged individualists. But when push comes to shove most of us are sheep who do what we are told. Worst of all, a lot of us become unpaid agents of whoever is controlling the agenda by enforcing the current dogma on the few rugged individualists who actually exist.