I wouldn’t agree his leadership was the highest order. He got a lot of adoring press, and he made as sure as he could that was the case.
For quiet leadership and effectiveness, I think Nimitz was perhaps the best.
Nimitz and McArthur both submitted plans for the defeat of Japan.
Truman chose McArthur’s and it worked very very well, especially the great idea of not capturing every island.
I am sure Nimitz’s plan would have also worked but that doesn’t take away from McArthur’s actual success.