Mac's. There is nothing I can do on a "PC" that I can't do on a Mac. My Mac runs OSX/XP/Vista (I don't run Vista, but I could).
This means Mac = everything. "PC" = everything but OSX (and OSX is the best part of "everything" :p)
I could go into a hundred reasons why a Mac is better, but the simple fact that a Mac is “PC+more” means it’s better.