I have to say...I think macs are crap now too. Older macs did have the graphic advantage and I always said that. But when I finally took some graphics classes and was required to use the macs, I felt the PC had clearly surpassed them in speed, reliability, and of course capability. I installed photoshop on one of the libraries PCs to do my graphics work, because I couldn't deal with my zip disks never ejecting, total hard locks, 20 minute saves of a 5meg file (WTF!) and various other slow response problems that often required a reboot. The interface was slightly different on OSX, but that I picked up quickly. I never got used to the eject problems.
Its like macs are going through that open architecture temper tantrum PCs went through 10 years ago, only this time its not as funny! Until they get their act together, I'd just assume have nothing to do with them.
I think the only reason they're still used at this point for graphics work, is because no one wants to change. Not because they are supposedly better.