What is the best planet except earth?

Best for what ? If you want to bathe yourself in X-rays while you collect a lot of

hot rocks, Mercury is best. If it's sulfuric acid you need and you don't want to go

too far to get it, then Venus is best. Mars is best for red sand, and Jupiter is best

if you need a lot of natural gas. If all you really want is to live a good, safe, healthy

human life, then there's no place like home.