This depends on your point of view. Take Qishui Middle School as an example. Among these towns, Qishui Town has the best economy. Close to the sea, seafood products are eaten more and wages are higher. Longmen No.3 Middle School is the second one. South Star II ranked third. Tangjia Middle School is the poorest, because Tangjia Town is a famous poverty-stricken town in Leizhou.
Tangjia Middle School, among the schools you listed, this school has the largest number of students admitted to key schools. Followed by Nanxing No.2 Middle School. Then Qishui Middle School. Finally, Longmen No.3 Middle School.