As much as I want to pick a different song, Elevation takes the cake for me from the show I saw. The energy in Raymond James Stadium was like nothing I've ever seen when they played that song. That place exploded!
I'm going to be good and only give the award to one song, but Bullet the Blue Sky, One Tree Hill, and Mothers of the Disappeared deserve honorable mentions. I felt like the show was almost too loud from where I was standing, but the noise was fitting for BTBS (coupled with exceptional production), and the latter two were mellow enough that I felt like I really got to enjoy them properly.