The Stalin biography that I am currently plowing through also contains a detailed sketch of Hitler’s personality. According to the book, in contrast to the workaholic Russian tyrant, Hitler was lazy. He enjoyed manipulating the people around him and demanded that they suck up to him. He was capricious–or, as he would have put it, flexible in his tactics. He preferred to rely on his own instincts rather than the opinions of experts and the available data. He had an intense belief in his own infinite awesomeness. And, of course, he lied all the time.
Is this ringing any bells?