After seeing the Concert, I definitely enjoyed Disturbed the least.
Killswitch music had the crowd moving more, and seeing Disturbed live really reminded me why I don't like their music a whole lot. Including their fans.
Killswitch and Chimaira had a really dynamic stage presence, and the fans really fed on them. They got more people moshing and surfing than Disturbed.
And Scabbia is hot as f**k, and she's got a great voice.