Adolf Hit--- Nah, JK.
I'd have to say Napoleon, honestly. He made very many feats of intelligence along all of his campaigns. The Battle at Austerlitz, Lodi, Dresden... The Battle against the Mameluke and Turk alliance at the battle of the Pyramids where Napoleon first deployed his infantry squares in great effectiveness. His amazing ability to use artillery at a huge advantage no matter what. I even admire his extreme bravery in trying to tame the Motherland of Russia. However a mistake, which cost him 400,000 soldiers, it's still very admirable. Even 120 years later, when Hitler marched on Russia, he made no significant progress as Napoleon did.
Napoleon was a great emperor and general. He's a man that should be studied by everyone.