Macs are good if you're not a giant computer nerd.
Windows is better if you are.
At least that's what I've picked up from my own computer work and using friend's computers. Macs are generally MUCH more user friendly, but I'll take a less user friendly computer if it means I can delve into its innards and change things, which is "generally" more feasible to do in Windows (at least as far as I know). Plus, I do some software programming, so Windows is necessary for that too. Or well I guess I should say I DID software programming and WILL in the future. Its been a busy year so the present tense wasn't completely appropriate there😉
Plus, I like the big long hideous Windows errors. They usually tell me exactly what I need to fix. My friend's Mac was famous for producing very user-friendly but very generic "Something, somewhere, isn't working right" errors that are less scary, but also less helpful.
The biggest reason not to do Mac in the past was software compatability, but now that you can dual boot into Windows when you need to, its less of an issue. Unless you're a programmer or just occasionally feel the need to dive into your system registry, Mac is a fine choice.