Hitler, Churchill, FDR, Mussolini, Stalin, and De Gaulle are larger than life figures whom almost everybody knows. Compare it to Wilhelm II, Lloyd George and Asquit, Wilson, Nicholas II, etc. To the general public, they are footnotes in comparison.
Challenge:
From a POD of 1900, make the WWI leaders just as well known and larger than life as their WWII counterparts. You can change any WWI leader if you like.