Like, right now? Windows 10, I guess. It's decent for the average user, and I'm certainly closer to that than to a power user or whatever. I liked the UI. But as an average user I also liked Windows XP, Vista, and 7. Cuz it worked for basic web browsing and word processing and whatever.

I agree that Windows isn't the best, though. I've switched to a linux distribution and the package management system is such a blessing. God. Dealing with Windows programs and updates was such a pain.