it all depends on what u're looking for, but in general Hong Kong is a much much better place for hobbying than over here. There r young hotties to choose from pretty much everywhere and at whatever hour. Also much cheaper for the same or better services.
if u wander around the Mong Kok/Prince Edward area there are "Japnese style finger massage" places literally everywhere and they are not hard to spot at all if u can read some basic chinese words on their signs. These however are not the equivalent of MPs in toronto, they provide FS with no massage whatsoever. There are lotsa young talent mostly from mainland China. The girls are usually 18-23 and when they bring a girl over and u don't like what u see, u can ask for another one, however don't do this too many times coz u don't wanna piss off the wrong ppl. It costs about $60-80 canadian for half an hr(usually no MSOG allowed) so that's a lot cheaper than over here for what's slightly better than EBC style service.
If u r looking for a real massage with a finish in HK u gotta go to those bigger "Sauna" places. U can find them anywhere from North Point, Casuseway Bay to again, the Mong Kok area. Usually the basic cost covers 2 hrs, u go in, take a shower or sauna if u want, sit down in the lounge area and watch cable tv, get offered a free drink or snack, then they take u in a room where the MPA massages u for an hr 1st. And we are talking about a GREAT massage most of the time, better than places like JunJun, DragonLady, TCM, Changs overs here IMO. The 2nd hr is usually for extras with familiar options from basic HJ to BS. However some of these Sauna places r purely legit with no extras(no finish even), and of coz some(well, many) offer BJ, FS etc so u should find out in advance based on reviews etc. Prices are much higher in these places but it v rarely goes over $200-250 canadian even if u opt for all the best options. A reasonable price in the North Point area would cost u about $150 for a v satifactory 2hrs =)
anyway, once u r in HK u can find those magazine "guides" for hobbying even at the local 7'11 or newspaper stands, if u can read chinese that is.
otherwise as others have suggested here, the English version of www.sex141.com is v useful.
however some of the SPs listed there r of the "one building one"(literal translation from chinese) variety. That's basically like an incall place, u go to the SP's apartment, no middle man, usually around $60-80 also for 30min.
i really miss hobbying in HK, altho i've no idea when i'm going there again, probably not until the next xmas.
hope this info helps, PM for more details if u want.