Redhat is correct about the SW scene in Ensenada. If you go east on Miramar past Trece Negro and take the first right heading south, there are a couple of blocks where SW's hang out in the daytime and early evening. They will usually be long gone by 10-11 p.m. They quote $20-30, but everyone I've asked will go for $20. The hotel they use (on the west side of the street) looks pretty sad, but it's comparable to the SW hotels in TJ. For $6 you get a relatively clean room, a bathroom with hot water, towels, and soap.
But be advised that these SW's are a pretty scruffy group and you have to be really Jonesing for sex before I'd recommend heading over that way. But it's an option.
The occasional SW also hangs out between the old Afro-Bar and Paris, on the north side of Miramar just east of Lopez Mateos. There won't ever be more than a couple, and often they're TV's. So use good judgment.
Another SW option is fairly new. On the sidewalk by Anthony's, a couple of SW's were hanging out this weekend during the late evening. I didn't discuss prices with them since they seemed to have an attitude.
Also, near closing time, some of the Anthony's ladies have been filtering out into the entryway to the hotel next to Anthony's to troll for customers if they haven't gotten any business inside during the evening. My friend picked up a good looking gal he had seen earlier inside Anthony's this way last Friday night at around 3:15. The next night, I stumbled over there around 2:30 (Anthony's and all the other bars except Paris close at 3 am), and met a very cute Anthony's lady who had left the club around 11:30 because the number of customers was low and she thought she'd stand a better chance outside. For both my friend and me, the ladies quoted the standard $100 Anthony's rate for going to our hotels. Mine discounted it to $80 if I opted for the hotel next to A's. I did and had a great session.
Apart from the street scene, Anthony's still provides a wonderful setting to make a selection. But you may have some sticker shock if you're used to TJ prices. Before 9/11, $100 was the going rate at Anthony's. After 9/11 the bottom dropped out of the market, and I was arranging dates back to my room for as low as $50. Now, it seems, the price has gone back up, although the market is still depressed for the chicas. They can be bargained down to $80, but it's hard to get them below that on the weekends. During the week when it's slower, you might have more success negotiating a lower price.
The other options are the strip clubs like Deny's/El Pescador, Paris, and Jackaranda's, all located on a one-block stretch of Miramar, east of Lopez Mateos. All three are comparable in offering in club privados where YMMV depending on the lady, the night, the chemistry, and the size of your wallet. Most of the strippers will go to a nearby hotel or your room, but you have to pay a bar fine of between $15-20 to get her out the door (unless you arrange something after the bar closes). And there are some very nice looking women in these clubs.
I only spent a moment in Trece Negro, but it was 80% drunk guys, and all the ficha girls were taken. So I didn't get a chance to test Redhat's theory that they're available for take-out. But there are a couple of other ficha/stripper clubs in that vicinity, e.g., Las Cavernas, where buying a ficha drink will provide you with some serious mileage. But these are very Mexican bars where the girls do not speak any English at all and you'll probably be the only gringo in the place. If you don't feel comfortable with that, stay with Paris, Deny's, Jackaranda's, and Anthony's.
Finally, there is a beauty salon across the street from Anthony's on Miramar. It looks like a normal beauty salon, with posters of ladies with different hairdos, etc. But this weekend we were told that it was $25/half hour, $50/hour, for the basic massage, and that anything else you arrange with the chica after that is up to you and her. Sounded promising, but unfortunately, there were about four chicas there, none of whom were interesting. Just another option that's floating around out there.
The thing you must remember if you're headed to Ensenada for the first time, is that almost nothing happens in the bars until late in the afternoon or early evening, and everything closes tight as a drum (except for Paris) at 3 a.m. So you have a limited window of opportunity, unlike a place like TJ that's open for sex 24/7. So figure out your game plan for the evening, do your research, put on your game face and get out there. Ensenada's a wonderful town with friendly people and the chicas are lovely.
Matiz