Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.
With Coffee Lake apparently, i might just wait until Ice Lake myself since it will be a new architecture. I think my 5820k will easily go strong until then.
Does anyone know if it's true that the 7700k will be locked to windows 10?