I agree that the High Command liked to blame stuff on Hitler to cover their own mistakes (after all everybody hated him AND he was conveniently dead), but there was still a awful lot of legitimate blame for him.
Hitler might have won in the East if threw the Italians in Greece and Balkans to the wolves and went straight in; he might have STILL pulled it out if he had condemned the attack by the Japanese upon the American Fleet in Pearl Harbor instead of declaring war in support of the Japs.
And there is no telling how much damage Hitler did mucking around in war production (imagine the Germans fielding a T-34 clone instead of the overly-complicated Panther or ME-262s fighters deployed in 1943...). His like of giant weapons wasted a lot of material.
There were better Field Marshals, Manstein comes to mind, on the Eastern Front. Rommel just got good press in the West because we were fighting him!
Well, the issue of oil dwarfs all else. Without that, the best generals in the world didn’t have a chance.
Rommel wasn’t sullied by service in the East, as well.
Rommel may be overrated because we want yge satisfaction of having beaten the best guy. That’s not the only reason, though. Were it, you’d think people would be able to name off the top of their heads more than one Japanese commander (that being Yammamoto).