Obviously, you didn't see that I had modified my post to show that Leonard with just inside the top 40 last year and barely inside the top 50 this year.
Also, nearly every advanced metrics guru out there discounts box plus-minus and doesn't really use it. Win shares also has a great deal to do with your teammates so that's not a very good individual measurement. VORP is also estimated from box scores so that's somewhat flawed too.
You should just admit Leonard is nowhere near a top 10 NBA player. He's very good but not even close to top 10 at least yet and definitely not a superstar.