That's a tough question, Mr. Bill. I would do a little internet research on Windows 8.1. It works great for me and gaming has been no problem at all. But if you are coming from XP or Vista, Windows 7 will be much less of a learning curve. It depends on how comfortable you are with learning some new things. In a way, I'd lean towards Windows 7 - I just don't think there's a better operating system out there. And Microsoft will support it until 2020.
EDIT: And yes, it seems that Windows 8.1 does the same thing!
Heading for the gardens!