whowhatwhy: do you understand the difference between Mac OS 9 and below, and Mac OS X?
For those who do not (you may yourself be included in this), Mac OS 9 and below was Apple's own special OS that frankly wasn't all that great in many ways. Its user interface was and is still better than anything Windows can manage, but in many other (lower level) ways, it wasn't as good as Windows. This also includes all the annoying file compatability stuff.
All that changed with Mac OS X, which is the current version, based on UNIX, which means that it's in general incredibly stable, very cross-platform compatible, works with anything Windows does, etc. I use a Mac daily, and have very few problems with it. Add to the UNIX underpinnings the best UI of any operating system, and you have a killer system.
But again, anyone who disagrees with this is generally a PC user that's never used Macs properly and doesn't understand or appreciate UI design and other concepts.
That video that is posted above is for before Mac OS X. Some of the points are applicable.
Also worth noting is that the guy doing the parody is actually a huge Mac fan:
http://www.happynowhere.net/mac_parody.php
Even the guys that create Windows agree that Mac OS X is better; you can't get much better than that.