OK, let's revert this discussion back from silliness and try to accomplish something of value to people who are on the fence about which system to buy into. We know all these major imaging programs will do the same things on both platforms save for compatibility glitches which open from time to time and eventually get fixed directly or by workarounds.
The real questions are about performance speed, system stability, multi-tasking, security requirements, back-up facilitation, and service quality for the price. For all you folks reading this and operating both systems, are you set-up to compare apples with apples, and if so, on these criteria, which is preferable in your opinion? Forget all the BS about appearance and who you need to impress.
The only winning move is not to play the game, I think, Mark
Everyone has personal preferences and even with the excellent criteria you've mentioned there's a degree of subjective evaluation involved which means some people will prefer one over the other and that's perfectly fine, accurate and reasonable.
The only issue I think you'll Mac really has an advantage is that at the moment OS X isn't targetted as heavily by trojans, viruses, malware, etc. It's not immune, but it is very robust and less of a target and that does translate into a potentially more secure environment. That said, in all the time I've used computers that were somehow attached to an external network (and that dates back to 1991 with an Amiga 2000) I've never had a system compromised by a virus. Just a small amount of care and some free software these days should keep you entirely safe.
For speed - it's the same hardware base (Macs do offer Xeon more readily than PC vendors which can give you better performance at the extreme end, but if you're doing an apples to apples then the hardware will be the same). Most benchmarks will show there's no particular advantage for either platform, although at various points in the product cycle you may find some new feature benefitting one or the other.
Stability - I see Macs at work crash about as often as the PCs doing similar roles, which is to say very in frequently. Certain apps are more prone to crashing, but that not the same as the underlying OS. I think historically Macs have had an edge here - closed hardware options should result in better stability. If you stick with high end PC components, though, from major vendors, you won't see much in the way of issues. This is particularly true of the 64bit versions of Vista and now even more so Win 7.
Back ups - Time machine is very cool. Similar utilities exist for Windows (and have done for years). Backups under Win 7 are simple, effective, create drive images that you can boot from, transfer, access and change and so forth. No real differences here.
Service quality for price - I think Apple charges at the high end and their service is good. Good enough to justify the price, but not a key benefit in terms of value. For PCs, it obviously depends on vendor but at the end of the day I think you can get reasonable service at the high end of the price range that's pretty much on par. You can get cheaper and better service, but it means finding the right place which is not always easy and if comparing apples to apples, then we're talking about major vendor support. This will be one of the more subjective issues and certainly varies from location to location.
For me, the differences are so minor that it comes down entirely to personal preference. I have zero problem sitting down at one of the Macs and using it, but I prefer Windows - that's all there is to it. OS X is not more intuitive to me - it's less so. That, without question, is a result of my previous experience with various computers and how I work and my personality and all the things that contribute to such things. There's no right or wrong :-) I think if you feel like a change, then changing is fine. It's not really that much of a pain to swap from one platform to the other - it's just potentially costly if you need to replace software or other peripherals and the like, but then we typically need to do that every few years anyway.
Of course, if we really want some zeal we should invite the Linux folks to comment :-)