I think they should add "Mac vs. PC" discussions to the list of taboo topics that people should never discuss at a social event, along with religion and politics. They always wind up descending into childish name-calling.
But I'll bite on this one, because I'm bored.
I've worked with PC's for over 20 years doing tech support, from Wall Street to small Canadian towns. My first PC was a TRS-80 and I bought my last PC about five years ago. So I think I know a tiny bit about PC's.
I used to look down my nose at Macs. I had a Mac Classic many, many moons ago, when I was a kid, but that was it. I thought Macs were overpriced and I thought the Mac fanboyism was just plain silly.
However, when Macs went to the Intel platform and I realized I could have a PC AND a Mac in the same box, and because my wife liked Macs, I bought her a Mac laptop when she asked for one for Xmas about 3 years ago.
After using it, I was hooked, and wound up buying myself a Mac Pro, which I love. To me, Macs are so much simpler to use in terms of things like playing around with photos, composing movies, doing "human" things. Obviously they're not ideal gaming platforms, and they're not as fully upgradeable and customizable in hardware as PC's are. But those drawbacks to me are not major big deals, since I can run Windows on my Mac Pro for the things I want to run there, and I can use the Mac side for the things I like doing on the Mac side.
The fact that a Mac can also be a Windows machine, AND is almost completely immune to viruses out of the box, AND has a smoother interface than PC's (that last bit is just my personal opinion), to me makes them worth the extra cost. It's a closed system that works well for me....I'm not as much of a tinkerer as I used to be, I just want the damned thing to work without me tweaking a million things. Macs do that perfectly.
Just my .02...if you love PC's, that's fine too...but definitely try using a Mac if you haven't tried it. Once you go Mac, you'll never go back