I'm a little surprised by how few of the bands I know. The South Stage looks like it's the main stage and I know most of them, but then it drops off quickly. I know 3 on the North Stage, and I've heard of Underoath. I vaguely know Hawthorne Heights and Rufio over on the Maurice Stage, and on the other three stages, Midtown's the only one I even recognize.
Pop punk is sort of a guilty pleasure of mine, and I'm a little disappointed to see that SoCo isn't on the list. Same with Mest, Motion City Soundtrack, the Offspring, and some others I'm sure I didn't notice in the list of bands on the main site.
To go, or not to go . . . that is the question . . .