i really can't stand the first album, even though a lot of people on here seem to like it. however, any of the last three are outstanding. the newest one (it's all crazy!) is a bit more of an acquired taste, and a massive departure from the albums before it. aaron weiss' actual singing voice seems to grate some people versus his "shouting" voice, but i dig it. i actually would go as far as to say i like the last record a more than Catch for Us the Foxes.
Brother, Sister is the best.