Im PC to the end, but macs do have a certain appeal.  If you want a nice, sleek package, and you only really need what you can use on a mac (sure you can dual-boot or something, but if you want to game or anything....you would have a PC to begin with).  Apparently macs are great for editing of all sorts, and personally, I love the feel of them.
PCs however, just seem to suit me and everyone knows why people back them.  I build though, so I could put any OS on my computer with no problem, so this could turn into an OS battle.