MusicianRob, (Careful -- ROB means something very, very different on mongering sites!) there is a torrent of information re: your questions on various sites so the most complete suggestion would be to simply do a few searches for specifically what you are looking for. However, here are a few concrete suggestions that might suffice for your first adventure:
BBBJ is available but not usually offered by the BGs and the SGs. You'll need to do some serious pre-session negotiation to ensure that you will get your desired BBBJ. BBBJ is the norm with escorts.
If you intend to stay overnight, check out Hotel Leyva which is just to the left of Chicago Club. The SGs can usually be persuaded to go with you to your room. Around the corner (across from La Tropa) is Hotel del Santiago. It's a few notches up from Hotel Leyva but my understanding is that it is more difficult to get the chicas to come with you there.
Happy Hunting!