Mac user here..
I choose mac because I suck at computers... I don't know how to make them work, so it's better for me if they just do by themselves.
the mac looks after itself, so I don't have to worry about registry conflicts or all the other technical stuff I don't know about, and I can focus on whatever I really want to use the computer for, studies, photo editing etc... If I want to use some new device or camera with it, I just plug it in and it works. No installing stuff and changing settings blah blah...
It's been at least a year since I had anything close to resembling a crash, and it sure hasn't slowed down like my PC would after some time...
My bro on the other hand, prefers PCs. They do have their benefits, like cheaper software (generalising here..), but he's good at the computer stuff so he doesn't mind maintaining his PC to keep it going smoothly.
Just my computer illiterate opinion... take with generous servings of salt.