How about one I posted above: How life returned to the streets in a showpiece city that drove out al-Qaeda.
The al-Qaeda fighters driven from Ramadi have not left Iraq, of course. Indeed, they appear to be stepping up suicide bomb attacks elsewhere.
And again:
Iraqi Shias are also worried that the new US-trained police forces of Ramadi and Anbar province could eventually metamorphose into well-trained Sunni militias; the Sunni insurgency may be fading, but the Shia-Sunni civil war rages on.
Not to mention the Shia-Shia conflicts, and the huge population displacements. I didn't see anything that supported the idea that "most of Iraq is now more peaceful than the average US city."