Well, of course I have some favourite leaders, but it seems to me little off-topic this time and in this thread.
But if you really want to see here some names, here they are (WW2 only):
Germans: von Runstedt, von Manstein and Rommel.
Soviet: A.A. Vlasov, Rokossovskiy and Dmitry Grigorevich Pavlov, but about Pavlov I do not know much...
I wonder why you need this?