IMO opinion, a PC can do a huge variety of things, but at a average quality between them all.
A Mac can do select things in an incredible manner, but runs other things at a bad quality.
Windows brings the quality to an equilibrium while a mac put's more quality into certain area's that appeal to certain people. Since I do everything on my computer I'd want a PC so I can make a, possibly tiny bit lower quality, T shirt, and then play video games, instead of making an incredible T shirt and then having a hard time playing a video game.
If you're not into games and your life centers around work that can be done at better quality on a mac, well, then get a mac. I personally like PC's because I do a huge variety of work on my computer, most of which does not comply with mac.
tl;dr it's your interests that really decide, neither OS is better than the other. they're both functional OS'.