In my experience it's no contest: Macs are better by far. I've owned and worked with many PCs over the years, beginning in the late 1980s. Every one crashed or malfunctioned at one time or another. Despite hearing lots of good things about Macs, I hesitated to switch because I had made substantial investments in Windows software. I finally took the plunge about 4 years ago and I would never go back to a PC. My MacBook Pro has never crashed or given me any trouble.
My family members now have Macs too and all of us have had very positive experiences. My son's first MacBook did have some problems, but Apple replaced it with a newer model with no questions asked.
I recently installed Windows on my Macbook Pro, using VM Fusion, to do website testing. After a couple of months, sure enough, Windows crashed. The MacBook Pro itself and the Apple operating system are still going strong. So for me, no question about it: Macs win by a mile!