No spot to vote for the Rock and Roll Hotel? Both venuse definitely have their merits - 930 club has a great soundsystem and attracts good (and bad) mid to big bands. Black Cat is more intimate, less crowded, and attracts upcoming about to break bands, but their sound is off more than half the time. Hard to pick. I would personally vote the Black Cat. Cheaper tickets and usually better bands. I would much rather listen to Cloud Cult or Blitzen Trapper than Katy Perry, Lilly Allen, or Tom Jones, though i do dig the Animal Collective/Fujiya & Miyagi/Mates of State shows the 930 club gets every couple of weeks or so. The staff at both places are good, so that isnt a factor.