Well, I just got back from said concert, and here it is in a nutshell...
(From 1-10, with comments where applicable)
The Distillers - 2 very, very scary how bad they sounded
The Donnas - 5 would have scored lower if their act wasn't so tongue in cheek
Jurassic 5 - 7 good crowd pleasing band, but didn't see much from them that any one of 5 or 6 hip-hop bands couldn't have done
Queens of the Stone age - 1 were so bad it was painful. Not only did their sound guy throttle them with bad sound, they were just straight up awful. AWFUL.