In no order:
Sun Tzu ('Nuff said)
Lord Nelson (A natural leader, loses both his right arm and his right eye, and he leads a massive naval fleet to Trafalger, although he died before he could see the victory through, none of his ships were lost and the French fleet was hammered.)
Bernard Montgomery (El Amlien was one of the first turning points of WWII, and he lead it. But may have been outshadowed by Operation Market Garden)