Windows 7 isn't better than the 10. But it's just less invasive. If you built a system at WIndows 10's time, get it. If you already built an old system with the 7, keep it. But please, for the love of god, don't be that guy that for him everything is old is gold.
Windows 7 is stable and best. No fear of future updates, no fear of silent data loss b'coz of automatic update in windows 10. I love things which once I install and just enjoy it till eternity. That's why I also hate android apps for updates every next week