My family rotates between Great Taste and Winsor for takeout so those are my top picks. There used to be another place that had great dim sum (I think also owned by Great Taste) but they've since turned into a Hunan restaurant.

I grew up going to places with cart ladies but a lot of them have converted to ordering via paper. It might take away the traditional experience but it also means less traffic in smaller spaces and your food is cooked/steamed to order instead of sitting in a cart for some time. I'm fine with either way.