The best so far is 321 Slammer in Ft. Lauderdale - it's a complete den of raunch. I particularly loved getting on all fours, ass up on the round table with all the other bottoms and getting train fucked and loaded up. The sling is always hot there too, and out in the open which turns me on.
At GI Joe in Montreal I ended up with a collar on, being led around by a leather Daddy who told me what to do and gave permission for all to use and cum in my holes.
Bush River in Edgewood MD is good too, 4 theaters - you can always pull your pants down, get on a couch ass up and expect a few loads.
I've done Vegas, Chicago, LA, San Diego, ATL, Jax FL, Ft. Laud, FL, Orlando, FL, Maryland, DC, Philly, NYC, Montreal, Toronto, London, Paris, Rome, Madrid, Barcelona and Costa Rica - I have a "need to swallow and/or get fucked a lot" problem.