in terms of actual war fighting, casualties for soldiers (ours and saddams) and civilians were lighter than ww2, civil war, vietnam, korea, etc because that is the nature of modern warfare. we don't have mass warfare like we used to. it's precision warfare now.
the main casualties are from the insurrection, iraqi extremists and foreign fighters killing iraqis. i also think saddam's regime easily killed hundreds of thousands of civilians, torturing, raping, gassing not only iranians, but kurds, and iraqis who were opposed to his totalitarian regime
in that sense saddam was just like fascist germany, italy, japan. he was a dictator. we took him out. in the end, iraq is the better for it. did you not see how jubilant they are that they can now vote? a democracy is forming and women have more freedoms..