I stick to PCs since I can build them to my own specifications. I LIKE tinkering.
Mac hardware has it advantages - Mac components are of high quality, and Macs tend to be put together quite well. But as a customer you don't have much choice.
For ages, Macs have been too expensive. That is no longer the case, Mac hardware is on the same price level as high quality PC hardware.

As for the OS, until Mac OSX I never took it seriously. Often compared it to Alfa Romeo cars - sleek looking design, but you couldn't drive from NY to Philadelphia and back without losing some components. Mac OS 9 stable? I've heard too many stories of 4-5 crashes a day.
Again, OSX changed that. Now the Mac has a good preemptive multitasking OS.
Funny side note: the first OSX version was developed on a PC, since there were no development tools on Mac OS 9 that were up to the job. One of the reasons you don't need Mac hardware to run OSX.

From time to time I have considered buying a Mac. Every time I didn't do it. Reason: when I buy new hardware, I buy FAST new hardware. I bought my first Q6600 system over a year ago, for about € 2000. A Mac with similar specs didn't exist, the one with the closest performance specs was a dual Xeon Mac Pro of € 5000.
This hasn't changed. If you want a mainstream performer, hardware costs for Macs or PCs are about the same. If you want a top of the line performer, you can have PC hardware at half the price of comparable Mac hardware (or less).

Viruses? Most of them are targeted at WinXP 32 bit, and recently at Vista 32 bit. I run XP 64 bit, which is immune to almost all of those viruses. Second, I know what I'm doing when I'm surfing the Net. I don't run resident virus scanners, I use a hardware firewall, every month I do an online virus check, and I haven't had a virus in YEARS.

I'll stick to PCs.

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

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