Why not use Windows 7 for AH and Linux for other stuff? Dual boot for example or even 2 computers.
I'm tempted by Linux, but I use things other than LibreOffice, Thunderbird, etc. So for now, I'd need Linux with Wine, but that might be buggy to deal with and take time. Still, I'm tempted.
I do use Win 7 for AH currently. But if I got a new computer, I probably wouldn't go out of my way to get Win 7.