Eh... all I know is that I havent herad of any stories of napoleon executing POW's needlessly or robert E lee massacring civillians (unless he was involved in some of the indian wars previous that I dont know about, I wouldnt be surprised if so). From what little I remember Rommel was supposed to be pretty benevolent, as for alexander... well that long ago you were lucky if invaders left traces of your city's existence back then so he did pretty good.