the metro is really similar to 930 club and is awesome. double door is smaller, more like the black cat but with way better sound. aragon ballroom, the riviera, and logan square are pretty big but get really good shows, the former is general admission with tons of standing room (actually looks like a castle indoors, really cool) and the latter are seated like DAR. schubas is really small and has a great bar and a back room where they have the shows. and the empty bottle gets a lot of small shows but i've never been there.