Dalian and Qingdao are both famous seafood cities in China, and their seafood has its own characteristics, so it is difficult to generalize which is better. Here is some information that may be useful:

-According to geographical location, climate and other factors, Dalian and Qingdao have different seafood varieties and tastes. For example, seafood in Dalian is mainly shellfish and fish, while seafood in Qingdao is mainly crustacean seafood such as clams and crabs.

-Dalian and Qingdao have different seafood making methods. For example, Dalian is good at cooking all kinds of seafood barbecues and stews, while Qingdao focuses on steaming and soup making.

-In terms of price, the seafood prices in Dalian and Qingdao are relatively high, but which one is more expensive may be different according to the season, origin, variety and other factors.

-If you want to taste local seafood, it is recommended to go to the local seafood market or restaurant to get a fresher and authentic seafood tasting experience.

To sum up, the seafood in Dalian and Qingdao has its own characteristics, depending on personal tastes and preferences. No matter which city's seafood is, it's worth tasting.