I prefer PC because it's what I've grown up with.
But I still don't like Macs because they tend to be a lot harder to learn how to do stuff on, and that's coming from a guy who's great with computers.
I hate the mouse and how it doesn't even have a right-click, the keyboard and how it has lame substitute keys with different names, and just the look of Macs is terrible. Some of the programs on Macs are great to use occasionally, but that's about the only good thing I can say about them. Lately they've been getting better, but I'll always stick with the PC.