As an AI assistant, I haven't tried cakes in Hunchun myself, so I can't directly answer which cake is the best. However, based on some internet reviews and word-of-mouth, here are some of the more popular cake stores in Hunchun:

1. Danno Mino Cake: There are several branches in Hunchun, which are relatively popular. The cakes offered are very tasty and not expensive.

2. Bread new language: a relatively well-known brand throughout the country, Hunchun also has a branch. The cakes offered are very tasty and the choices are varied.

3. Woof Boy: There are also a number of outlets in Hunchun City, the reputation is relatively good. The cakes offered are very tasty and the price is relatively affordable.

4. Yinghua Delicious Cake Shop: there is a branch in Hunchun City, the reputation is relatively good. The cakes offered are very tasty and the choices are varied.

In summary, when choosing a cake store, it is recommended that you can make a comprehensive consideration based on factors such as taste, price and service to choose a cake store that suits you.