LBJ isn't guarding the primary option of the other team for almost the whole game anymore. Kawhi is better than him now because of that, especially in a playoff setting.
I'd rate Steph and Durant ahead of him, but I understand if you'd put Kawhi above either of them. I also think Giannis is right their with Kawhi, though the dynamics of the their two teams matching up made Kawhi a superior player this series. (Kawhi can clearly do more in the half court iso style of game)
Thank you Fafnir, to build on this: "Put Kawhi's heroics on offense to the side for a moment. What he did as a defender was Defensive Player of the Year Kawhi-level stuff.
For the series, Giannis has nine points in the 60 possessions Kawhi has guarded him. The Bucks have 55 points in those possessions. That's 91.7 points per 100 possessions. This postseason, Milwaukee is scoring 111.6 points per 100 possessions, which trails only the Golden State Warriors and Denver Nuggets' marks.
When Kawhi is on Giannis, the Bucks score 19.9 fewer points per 100 possessions.
On a more basic level, Giannis is 4-of-16 when defended by Kawhi. In Game 3 alone, he was 2-of-12.
The numbers are even more staggering when compared to what he's doing against the rest of the Raptors.
When Giannis is defended by Raptors not named Kawhi, Milwaukee has scored 211 points on 184 possessions (114.7 points per 100 possessions). Giannis himself has scored 57 points on 18-of-36 shooting against the rest of Toronto."
For those thinking a 35 year old Lebron can do this AND carry the offensive load, it is just a mind blowingly bad and unrealistic take.
https://bleacherreport.com/articles/2837174-did-kawhi-leonard-raptors-find-the-secret-to-shutting-down-giannis