The Central Conservatory of Music is good. It is the only music conservatory in China that is good. Needless to say about the teachers, the conditions are also the most generous. The state provides the most money, so it is definitely better than other schools. (But it’s really difficult to take the exam. Only the best students in the country can pass it.)
Shanghai Conservatory of Music is basically on the same level as the China Conservatory of Music and cannot be compared with the Central Conservatory of Music.