Besides, where is the command prompt for a Mac, if there even is one?
There isn't one. The reason is because while Windows' predecessor (DOS) was a command-line interface, thus enabling Microsoft to recycle it into Windows, Macintosh had no such forerunners. And I guess Apple won't create one.
Now, onto the actual debate. I have to finish this quick before my PC crashes on me again (if that's any indication of where I stand on this issue).
Note that when I say "PC," I'm really referring to Vista, since XP is actually pretty good and 7 doesn't look too shabby either. Macs have like 20 different OS-es that pretty much all look the same and do the same thing.
Macs and PC's both have their pros and cons.
Mac has more compatibility issues since PC's are more mainstream.
Macs are also more susceptible to virii (ha, Windows spellchecker got that wrong), but because of their limited use, it's unlikely that anyone's wasting their time virusing one when they could be wreaking havoc among millions of PCs instead. Versus PC's, which are constantly being attacked (and many times, beaten) by such things.
Macs have a more business feel, and PC's are for home use.
Macs have that "homemade" touch to them, since they and most of their components are created solely by Apple. PC's are cold, hard, soulless unfeeling evil machines that apparently only exist to intimidate people and irritate them to no end.
Macs are like 5 times faster than PC's and, although not really relevant, silvery sleek Macs look way more awesome than boring dull PCs.
Overall? Mac.
Why?
Because MAC'S don't get all pissed off at you, crash, burn, become a BFBVFS, and generally do EVERYTHING IN THEIR PROCESSOR CAPACITY to make you as mad as possible just for trying to get rid of the Internet Explorer. Oh yeah, that's another thing. Macs seem to welcome open-source software, and PC's seem to self-destruct when you shove their pre-installed "incomparable" components aside for something that's better.
And on top of that, mine seems to be developing sentience, since it seems to crash whenever I bad-mouth Microsoft.

Although, outside of the Mac vs PC world, Linux beats out both since it kills as far as speed is concerned.