The Japanese girl I was with a couple weeks ago played the stereotypical submissive roll pretty good. Bowed a lot, took my clothes and folded them on the chair, and helped me get dressed after. Treated me like I was the emperor himself lol. Also, I had heard most Asian girls didn't shave their pubic area, and this girl was no exception.
I've seen 2 black SP's and had great service and nice attitudes from both. I noticed both had more pronounced labia, but I haven't seen enough black ladies to know if that's typical or not.
The one latina girl I've seen had a nice firm body and a J-Lo ass, and an "I'm all that" attitude to go with it. When we were done she hopped off, threw me a couple kleenexes and pointed to the garbage. Then she tossed the condom wrapper over and said to throw it out too lol. She was dressed in no time and already on her phone by the time I accomplished that task lol. I don't want to generalize though, as that was just the one girl.