First-class schools include Fudan University, People's Congress, Tsinghua, Peking University, Wuhan and Zhongshan.
Judging from these two schools, Beijing Normal University is certainly better. Nanjing Normal University is inferior.
Therefore, Nanjing Normal University is relatively easy to be admitted.
However, the postgraduate entrance examination has its own contingency, and prestigious schools usually standardize some, so if you have strong ability, you can grasp the big ones, while ordinary schools may not standardize the topics because the topics are more casual, and sometimes it is not easy.