Mmmm..... I do think we went to war too quickly (I think the U.N. would have come around, but we'll never know...) and had either misrepresented or mistaken intelligence, all of which are very serious concerns when you base a decision to go to war over them. However, that being said . . .
Saddam Hussein's reign:
1 million people dead in Iran-Iraq war, 1980-1988.
100,000 - 200,000 Kurds massacred - mustard gas, nerve agent surin, and others. Systematically executed, not even combat casualties. 1 million become refugees.
Attacks Kuwait and launches Scuds into Israel.
During UN sanctions against IRAQ, and oil-for-food program, somewhere around 1 million IRAQi's die while Saddam
builds palaces (He had somewhere between 21 and 36 palaces) instead of feeding and helping his people. Palaces. Gold toilet seats. Olympic sized swimming pools. Palaces.... and starving people.
Saddam put civillians into harm's way. Storing weapons in mosques, schools, etc, conducting attacks from hospitals.
Number of dead IRAQ civilians in this war - 15,000 to 17,000 (iraqbodycount.net). 27,000 (Iraqi based People's Kifah). 27,000 (US based Brooking's Institute). 100,000 (Lancet study of 1000 homes). (These numbers are dated, I did this research a couple of months ago).
Allied strategic bombing of Germany in World War II killed an estimated 2 million people in a nation with a prewar population of about 80 million. In Iraq, with about 23 million people, the same proportion of casualties would mean about 575,000 dead civilians.
--- saint
There were worse atrocities, Sudan as you mention for example, and the sanctions on Iraq (which the US refused to allow be lifted) killed more Iraqis then Saddam ever did.