Guangdong/HK cuisine is so much worse than Taiwan cuisine. They literally take Chinese foods from other parts of the country, remove all spices and flavor, then market the result as "clear" food.
One of the most horrifying anecdotes I've heard about food is from an acquiatence a few year backs who told me that she used to eat hot pot somewhere in the Chinese deep south, except this version of hot pot used plain hot tap water.
I'm not saying you can't find good food in the south but if you think about it, you'll realize that all tasty HK food are appropriated cuisine from the middle/North or even from Macau. Dumplings, Ramen, stir fry etc and so on. Very few if any good recipes were native made.