As far as your PC running slowly, it is because Windows OS is meant for gaming whereas Macs are simply there...just to be there. You can't do any real configurations with a Mac. Gaming is almost nonexistent, with people consistently building Windows computers rather than Macs because it is more conventional, and as you said, cheaper. That doesn't excuse BSoD or the number of viruses/bugs with any Windows computer, as from statistics there are almost zero viruses or anything that can affect a Mac...besides smashing it on the ground, of course.
I never did like the easy interface on a Mac. Say it is because of my experience with Windows, as it probably is, but the Mac's little docking screen makes me so mad. I enjoy other Apple products though, but for computers I stick with Microsoft Windows.