I know I'm late, and my concert ended a few weeks ago, but Projekt Revolution was a blast. I got to meet the singer from Mindless Self Indulgence. MSI was awesome live.
The Revolution Village was pretty fun too :)
Julien-k, MSI and Linkin Park i think are by far the best live. Although i don't like My Chemical Romance that much, they were pretty awesome live too and they had good pyrotechnics to boot. Linkin Park were the best with 90 minutes of awesomeness. It felt like a full house here. I just wish it was longer (i want infinity hours of LP lol)
Everyone should go to Projekt Revolution, really.