Just take a look at the figures...
http://www.digitalvideoediting.com/2002/07_jul/features/cw_macvspc2.htm
and refrase your question...
There is no winning this discussion though. MAC users for some reason just can't be convinced by the naked figures and refuse to see what's in front of their eyes. Fact is that MACs can't keep up anymore be it in speed, compatibility, choice of hard or software, games, pricetag...
Furthermore a decently installed PC like the Dell mentioned in the test with W2K or XPinstalled is as stable (probably a lot more stable if you run W2K) than any MAC out there running whatever OS you choose. Memory management has always been the problem child of the MAC's and while this may have been resolved with OSX this OS will also require you to upgrade all of your software if you don't want to run it in some compatibility mode. Ease of use is no longer an issue, with the coming of XP a child can configure the system, that's if you let them cause you can just as easily grant multiple users acces with different rights, different desktops, their own settings. Multiple user sessions can be open at the same time, no need to shut down the system if dad wants to use it for five minutes, just leave your applications open, open another password protected session and swith between users.
I could go on like this for a while but i would rather challenge any MAC-user. Give me 1 reason why i should buy a MAC and I'll give you 3 why you shouldn't (someone care to take up the gauntlet?)
My system:
Athlon XP 1600+
Triple boot: Windows 98, Windows 2000 server, Windows XP
512 MB Ram
Three harddisks (80,20 and 12 GB)
Graphics: MSI Nvidia Geforce 4 ti 4600
21" CTX Trinitron monitor
Not the fastest PC-system around (that has to be the 2.8 Ghz pentium 4) but it'll kick the hell out of anything but the heaviest, dual-processor MAC out there at half the cost and it does a far better job at playing games than any MAC (or any console for that matter).