Akka is right -- Bonaparte was far too complex to be catagorized in an "either/or" situation.
He was, however, the anthesis of Hitler. He certainly curbed the worst excesses of the Republic, yet was only a fair civil administrator and was too often in the field expanding or defending the Empire. Yet he was not racially motivated and did indeed embrace the Republican ideals of equality, fraternity and liberty.
As a general, there are few that are his peer in history, and none really exceed him. He totally changed the face of warfare, bringing an energy and violence to the battlefield that persists to this day. The lessons of his campaigns are still taught in military academies around the world. Perhaps Alexander the Great and Jenghiz Khan are his equal as generals, yet neither overshadow the diminutive Corsican.
But to say France was greater after his reign than before is to totally misread history. In a sense, Napoleon sowed the seeds of future French disasters by forcing the Germans to finally unite. In the 18th Century, France was the pre-eminent military power in Europe -- Frederick and Prussia may have had the best military but it was a small part of Europe. The French under Louis the XIV (I believe, always get the numbers mixed up) introduced modern military practices to the world, capitalizing on lessons from the Thirty Years and 100 Years War.
Although MrPresident is right -- aliens are trying to control us through the medium of brunt toast, as well as weak tea.