Development gallery, Xi’an or Nanjing, which city is better?

Development galleries, Xi'an and Nanjing, Nanjing are good cities. Nanjing is located in the south of the Yangtze River, with a relatively humid climate and suitable for long-term living. It is an important industrial city in my country. It is located in the Yangtze River Delta region, with obvious location advantages and rapid development. Cities with fast economic development have more people and more people are getting haircuts.