I own a Macbook Pro and a Windows PC and I can summarise it in this.
If I wanted to play games, i'd use my PC.
If I wanted to do work, i'd use my Macbook Pro
If I wanted to watch a movie/surfweb/video, it would be the Macbook pro.
I don't think you can ever understand an Apple machine until you use one. The best things about the MacBook pro for me, is the fast boot times and shut down time, old laptop that was massively more powerful couldn't do it that fast. Instant resume for standby (Never ever shut the MacBook down, unless restarting, which I very rarely have to do) Uninstalling applications is easy and the bundled software is actually useful, aluminum casing takes one hell of a beating before anything gets damaged. The OS, once accustomed to in my opinion is just like linux, but more user friendly and with better application support from large companies like Adobe. Also you have to consider the excellent technical support, but you should also consider that the machines don't even break that often, at least, not in my case. You also know what you're getting, whereas with Windows, you can get all sorts of mishaps, for example, old XP laptops with no updated drivers for Vista.
Though with a PC you get better value for money, and you have the ability to game, but if I had to choose between the best overall machine, despite the lower power of Macbooks and the inflated price, i'd still take the Macbook.
But like mentioned earlier, some people would never buy a Kia because its a Kia. They would always prefer a BMW etc, even if functionality wise, it wasn't as good.