I say the 2008 loss to Florida in SEC championship. They went into the game knowing they could win. Didn't work out, but you knew Bama was back. I know, I know, the Utah game wasn't pretty, but you could tell Bama's heart wasn't in it. Revenge in 2009 was sweet.
For me it was the ‘07 ass beating of 10rc. I knew there were still going to be some bumps in the road but sitting in BDS that day I literally got chills watching how well prepared CNS had those guys. From the opening onside kick it was obvious the level of intensity he had them at