Lets go party.....
Best place you can party in Hong Kong, apart from Wan Chai. However, LKF is a place with plenty of different bars and all kinds of entertainment. Close to LKF are other small streets with bars for any kind of genre. Close by is the Dragonseye which is usually the place of celebrities to hang out. If you're lucky you can see a star there like Mick Jagger, ManU, etc.
However, don't forget to bring your savings along, as well as a "back-up-credit-card". You will need it. Hong Kong is not a cheap place to be, but the prices are average and sometimes below average. A beer will cost you usually between 5.5 and 8 USD during normal hour and approx. 3 - 4 USD during happy hour.