Can't be for people like me -- I never go. :p
A free and democratic Iraq, connecting with the global economy in full and not just in the oil sector -- Iraqi produce and greengroceries are voluminous and could be famous, for the Fertile Crescent is as fertile as it ever was -- is an Iraq that wins out, and America along with her: it's a win-win. Whether a new Iraq is a federation or a looser confederation, either would be fine. Three separate states seems too likely to lead to Balkanized problems.
Rejecting al-Qaeda's agenda of retreating into the Gap is the most positive step I've seen from there. Iraq is finally awakening to sense.