First, positives which are worth the cost in lives, misery, treasury. I don't know of any.

Second, any positives, regardless of cost, lives and suffering.

Saddam is gone. (GWB didn't start out worse, but as time has gone on and statistics pile up, he's surpassed Saddam. That doesn't mean it's not good that Saddam is gone.)

US troops are getting experience fighting a guerilla war. That's a positive. It would be better if they were able to learn how win a guerilla war, through winning hearts and minds, or otherwise. Could have studied the Vietnam War instead. But experience under combat conditions is hard to get and very valuable, both to the individual and to the military.

Offhand I can't think of any others.

Anyone else?

Arf