Agreed, the tailgate was awesome -- and incredibly well organized. There were supposedly 1400 people there (and it seemed like it) and there were essentially almost no lines for the food and drinks, and plenty of seating. Plus, I finally got to meet Aussie, Pinto Kenny, and Pancho Billa. How great is that?
And I'd estimate the percentage of Bills fans at around 25-30%. It was impressive.