...I am a mac addict...there are a few others here too. I'm on my third mac now. 
I prefer it for several reasons, but my first real computer experience was on a mac (when taking graphic design in college), so it's what I'm most familiar with. That's why I first bought a mac. I continue to buy macs partly for that same reason (familiarity...I'm totally comfortable using a mac) but also because, I've been pretty happy with the performance of the macs I've owned...usually. For the most part everything works the way it's supposed to. The one issue I had previously with my older macs, would be that they would crash a little too often, BUT ever since OS X came out, I've been even MORE impressed. The system is MUCH more stable than previously. I've had this mac almost a year now, and MAN, this is one stable operating system!. And of course, the lack viruses, spyware, etc...is a big plus. I'm definitely a loyal mac user...and I can pretty much guarantee my next computer will be a mac. I just like the way they workwituckius said:Other then virus protection why do all of you Mac lovers prefer Macs over PCs.