Hunan House is my favourite, I am addicted to the garlic shrimp.
Iron Chef is my go-to for dim sum, and I also really like Dragon Court in Westdale. Pricier then your average Chinese food, but huge portions, and high quality. I love the Honey Coconut Chicken! Lovely owners as well.
My mainstays are: Harvest Moon (http://www.harvestmoonhamilton.com/) (cheeeeap), Crystal Dynasty (http://www.restaurantica.com/on/hamilton/crystal-dynasty-chinese-restaurant/23000323/) (good value but nothing special), or I hear things about Hunan House (http://www.restaurantica.com/on/hamil...) but have never been myself.
Chinese Dumplings (165 King Street East) has turned into Sparkle, offering Northern Chinese food but I have not been. The look on the outside leads me to believe it's in the same vein as Asian Legend but I haven't seen the inside or the food so I cannot comment.
Hope that helps!