The note about Napoleon's genius seems redundant. I don't think anyone would ever deny his genius. The decision to abandon the Pratzen Heights was nothing short of spectacular. Theorists can analyse it to their grave, how many would emulate such a feat? His skilful manoeuvre is another example. The Austrians were humiliated in Italy due to being outmanoeuvre, a subject that all military commanders were trained in.
Of course, the biggest problem with Napoleon was that military skill does not translate to political warfare.