I love dipping my oar in this one.
I am a mac fan, no doubt about that, but I use Wintel as part of my daily work too.
Anecdotal evidence isn't worth the paper it ain't written on, but here comes some anyway.
I sometime play Aces high on my Mac, and it goes beautifully . Despite what other posts have said, OS X has been refined considerably so you can have an almost OS9 like appearance if these things get in your crack so much.
I also like windows XP (apart from the gumdrop appearance and the assumption that all users are new to computers). It is a behemoth to be sure, but the way it simply downloads the drivers you need for your new gadget without any fuss is real nice. Not as stable as OSX though (I f*ck with my computers a lot - not techie, but installing software, ripping it out, generally being a nightmare user (thinks he know something but actually doesn't - messing with settings without having a clue as to what they do)
The debate is void. The Wintel machine is VHS of the PC formats. Mac (betamax) continues to cling on to 5% of the PC market through appealing to med/high income style slaves (like me) who rate Sheer raw power providing it's in a nice package. That and the tight integration of hardware and OS. And software that doesn't give you nerdy messages like "Exception Error at XXOEEEE0000000LLLLBILGATESISA TWAT" - preferring instead "An error has occured". And the interface design that is a design, rather than a bag of spanners - it pays to get british design in, Jonathan Ive, take a bow. Even the Microsoft products for the Mac (partly designed in UK) are better than their Windows counterparts.
I love Wintel because of the lego approach - although that too is increasingly possible with Macs - where you can just festoon them with extra bits until they fall over. And the ubiquity of the software of course, which means that for any one task you can choose from 3,000,000 tools available as opposed to only 300 or so on Mac platform, less if we're talking OSX.
Of course Mac OSX now represent the largest installed base of *nix Workstations. Windows is a tool for office workers (predominantly), Mac a tool for anyone with an elitist streak, and *nix (Red Hat, Yellow Dog, Purple Monkey) - is for the tinkerers who prefer making tools than using them
my tuppence ha'penny' worth
quick helpdesk joke -
"How do you get a mac to talk to a PC?"
"Tell it to speak slowly and avoid the use of irony"