There is a very popular food website in Hong Kong called “openrice” and it is so popular that it has developed an English version lately. As the locals contribute to the website, the majority of the content is in Chinese with some comment occassionaly written in English. Despite this, through the English website, you can easily find out which restaurant is good and where it is and what the general review is. The search function by location and food type can help you a lot.
It would be a good guide for eating out in Hong Kong. Try it here.