Hi people, long time, no post

I think my C drive is failing . So I'm getting ready to replace it. With that said, I'm still running XP sp3 and I see support for it is ending. The question is what version of windows do I want? Win 7 or 8? I've read/heard that there's still a lot of issues with version 8. But am I wasting money on 7? Don't pay a lot of attention to my PC specs below, much has change.

Thanks everyone