Xidian university is a national key university affiliated to 2 1 1, while Shenzhen University is not 21/. So xidian university is better.

Xidian university, referred to as "Xidian" or "Xijun Power", is located in Xi City, Shaanxi Province. It is a national key university directly under the Ministry of Education. Established by the Ministry of Education, the Ministry of Industry and Information Technology, the National Bureau of Science, Technology and Industry for National Defense and China Electronics Technology Group Corporation, it ranks among the national "double first-class" and "2 165438". ShenzhenUniversity, referred to as "Shenzhen University", located in Shenzhen, Guangdong Province, is a comprehensive university sponsored by the people's governments of Guangdong Province and Shenzhen City. It was selected as the key construction university of high-level universities in Guangdong Province, the innovative experimental area of national talent training mode and the national civilized campus.