Is there a “best” distro for non-geeky general use?
Mint, kubuntu, others?
Absolutely... I can testify that the best for a new Linux user coming from Windows is the newest version of Linux Mint Cinnamon. It comes pre-boxed with all the apps you will most likely end up needing to download later anyhow. And if you are familiar with Windows 7 it is almost the same thing. The layout and functions such as right click menus for files Etc. are the same. It really is the most comfortable for a new user coming from windows. I tried out several in the last 5 years and went back to the Mint Cinnamon. :)
For beginners, I would recommend Mint Cinnamon (or Mate, it is less resource heavy).
If you want to have more control of your computer, KDE (I think Kubuntu would be the better choice for KDE, it’s simple and stable).