I've used both and prefer one over the other depending on what I'm doing so I can't say I ever like going into this whole debate about which is better, though oddly enough, I've crashed more Macs in one year than I have for PC's in a decade so I always chuckle a bit about the whole "dependability claim". I guess I admit Mac death rays or something...

Though, I will say that I also have a great disregard for the elitist mentality among some Mac fans and the fact that Apple has sorta embraced it as a company just makes them look less appealing.