Which is better, Shenyang or Dalian?

I am from Dalian, of course, I prefer Dalian. Now studying in Shenyang, I still think Dalian is more suitable for living.

First of all, the air quality in Dalian is good, and PM2.5 is generally excellent. Shenyang is generally heavily polluted, with more haze weather.

In terms of temperature, Dalian is warm in winter and cool in summer, with a small temperature difference between morning and evening. Shenyang is hot in summer and cold in winter, with a large temperature difference between morning and evening.

But Dalian's disadvantage price is very high.