The fillings are different.
Hailongge mooncakes are famous for their "earthy flavor". Its advertising slogan states that local pork and self-pressed peanut oil are used as mooncake fillings. This is one of the reasons why Hailongge mooncakes were particularly famous at that time. Golden Moon Cake has a lot of fillings, with a wide variety of fillings. There are melon seeds, sweet ones, and walnuts and other dried fruits.
The more famous mooncakes include Lideng, Jinjiu and Hailongge. The mooncakes at these stores are all good and come in many varieties.