The sad thing is there won't be a good clean fight, because there is no option acceptable to both sides with less civilian casualties. Being as one side brought us into this war by causing about 3,000 civilian fatalities, it looks like a dirty fight may be the only option.
Even if you disagree with ~100,000 dead Iraqi civilians number, you'd have to agree that we have probably killed way more than 3,000 innocents inadvertently in Iraq. Americans and insurgents could argue all day over whose fault it was. Some might say both sides are at fault because both sides are willing to inflict civilian casualties to win, and neither side will back off.
Here's a fun question: Is an American civilian worth more in eyes of God than an Iraqi civilian?