Which is more interesting, Nanjing or Wuhan?

Nanjing is similar to Wuhan. The climate in summer is also very hot.

However, I suggest you go to Nanjing. I believe there will be more historical sites there, both ancient and modern, which are great.

And personally think that the customs in Nanjing are more primitive than those in Wuhan, and Wuhan people are more cunning, especially near railway stations and bus stations.

You should be careful if you decide to go to Wuhan.