Hong Kong is over of the most overrated cities in the world. Sure it has a beautiful skyline but that's about the only thing it has going for it. I hate Cantonese food, tends to be too sweet. The women are incredibly materalistic. You are better off going to any other Asian country to meet women. The city itself (especially Kowloon) is so crowded and I'm not just talking about people. The buildings in HK are too close together and every hotel room is like living in a shoe box. It's also more expensive than the USA in my opinion. I remember going to Lan Kwai Fong (drinking area for younger people) and was shocked at how poor I felt. Most of the clubs there have dress codes or entrance fees and once you get inside it's not even worth staying.
There is one area that is famous for picking up girls. The name of the place is Wan Chai and it's were all the South East Asian women work. Most expats prefer these girls over local materialistic women. Many girls from these region work as maids and they all go there on Sunday afternoon (their only day off) to meet a guy and have fun.
So if locals or western girls are you thing Lan Kwai Fong, if you prefer South East Asians girls Wan Chai.
