I've been using many different tablets since they came out (iOS, Android, BB, Windows). I found that a large tablet is critical for productivity and I agree that 10" is the minimum, but it is also too small for me.
I also found that thin 8" tablet is perfect for ereading, whether magazines, novels, Web browsing, videos. However with the very high resolution display, it is also handy for light productivity, I can use it to ssh or tunnel xwindow into my debian boxes, review Office documents, and learn Spanish with duo lingo. Ever fall asleep and drop a Surface on your face?
Microsoft has all but abandoned the smaller than 10 inch tablet (no longer in the Microsoft stores) and I could find any high end windows tablets in that category. Of the metro/universal apps, the ones I need are not available and over the last few years many aren't being updated, lack features and are now disappearing from the Windows app and store. And with windows/Android, I can easily copy files between the devices and they both support Miracast (eg. Microsoft wireless display adapter).
Microsoft has all but abandoned the smaller than 10 inch tablet (no longer in the Microsoft stores) and I could find any high end windows tablets in that category. Of the metro/universal apps, the ones I need are not available and over the last few years many aren't being updated, lack features and are now disappearing from the Windows app and store. And with windows/Android, I can easily copy files between the devices and they both support Miracast (eg. Microsoft wireless display adapter).
Long answer, hopefully useful.