Of course, Hitler had charisma. Yes, he was an evil bastard, but that doesn't change the fact that he had charisma. Hell, watch a video of one of his speeches. Even knowing he's an evil bastard, even knowing what happened because of it, even without knowing a word of German, even with the bad quality of video recordings compared to today, you still can get swept up in the flow of his words. THAT is charisma, make no mistake.
Now if only he hadn't taken so many ranks in 'evil bastard'...