Have to massively disagree here. Being that Rise against is one of my favorite bands, id actually say there songs are similar at times but only songs on the same album. To me ever album has a different feel. Even though some might call an album repitive, I think it works because it makes the albums not all over the place.
Also if you are looking for different check out: Give it All, Roadside, Bricks, Prayer of the Refugee, Hero of War, and any song from "The Unraveling" to name some