I've been doing graphic design since 1992, mostly on a PC. I can't imagine how a Mac is better - I've always been able to do whatever I wanted to do on a PC, with the right software. I keep hearing that Macs are better than PCs at graphics, but when I ask for specifics, no one has the answer.
Years ago, on the Web design mailing list I've been on since 1996, one Mac user said, Macs kern better. I said, really, did you know X software on the PC has this kerning command, and you can adjust it in millimeter increments? No, she didn't know that. There were several other examples like that, and in the last several years, there's no response at all when I ask how they're better. It was true in the '80s, I think, but not anymore, and it hasn't been true for a very long time.
Another time, a guy said, well, Apple originated the graphical user interface and Windows just copied it. Why should I care who originated it, I said? No answer. I don't care who originated the keyboard layout or the mouse, either, I just want to use them.
The only time I've used a Mac was in a communication design class at the local community college. IT DROVE ME NUTS. When you're used to Windows, you will constantly be closing programs when you mean to minimize them. I don't call that intuitive.
Windows PCs come with a fair amount of basic software, too. And I like having options when I want to add more functionality to my PC.
Also, I got an iPod Touch for Christmas last year; this past summer, a software update for it was released by Apple. After installing it, I could not access the iTunes store anymore. There were a lot of questions on the Apple forum about it; the upshot was, the software was flawed and Apple not only did not fix it quickly, but they didn't even acknowledge that there was a problem. They were still promoting the new version on the site, even though it broke your connection to the store. From forum messages, I gather this is not uncommon - if there's a problem, they just don't acknowledge it, and they fix it quietly and in their own time. So, buyer beware