Why Windows?

I have used a friend's Macbook Air for a while, and I use my brother's desktop PC, too, but I want to buy a computer which I own. I'm between two worlds right now, and I can't really decide. I don't have contrains about price, so, that's why I'm asking the question. Why should I buy a Windows 8 laptop instead of what's out there?

As background notes, I use Netflix, manage some blogs, I like to code sometimes, edit some videos, manage-edit-create documents, and download some torrents.