I stayed in downtown Vancouver recently for 9 nights and gave up hope of finding any decent Chinese place. Maybe Richmond is the place to go to, but definitely not downtown.

The city didn't strike me as the culinary capitol of the world, in fact I found it quite difficult to get a good meal there of any type of cuisine. Found the Glowbal place by chance in Yaletown which was nice, and for sushi Kadoya on Davie was an excellent choice.

You really need to seek out good places in Vancouver and rely on personal recommendations, definitely not as easy as Singapore to find good food easily.