i was kidding
but it's really too complex to break it all down into a simple Mac OS vs. Windows anyways. too many variables.
i have worked in advertising, everyone was on Mac OS with Quark - no way to change that into PC even though Adobe tried hard with Indesign
i worked at Siemens - 400,000 people work there with a mainframe architecture and Windows Clients - no way to change that into Mac OS.
i had Apple Powerbooks in the past, worked well for me. Then i set up an office network with Windows Server and Mac OS clients make only problems there. So i use a Windows client.
Nowadays Apple computer are indeed not different in hardware than PCs, just a lot more expensive. And Mac OSX is a glorified FreeBSD Unix and some rests of NEXTStep with a nice user interface.
And it's a myth that Macs are more stable, it always depends on how good you treat your computer. My PCs have always been very stable - because I dont clutter them with garbage. But the Macs worked equally fine. There is no better system, there is no cheaper system, it's always just about how good you administer your systems. Just use what you like more.
But this pseudo religious attitude some Apple fans have can be really annoying sometimes. If Apple made an iWipe toilet paper they would buy that too.