Enlightened Masters teach only the same thing - to save and liberate beings; they transmit the same method, the one and only method for liberation, that is the Quan Yin Method. Whatever it is called, be it Pure Land Method, Universal Gate Method, Prajnaparamita Method, or the Diamond Method, the name does not matter, it is all the same. As long as it leads to liberation, it is the Quan Yin Method.
All methods are the same as long as there is an enlightened Master and the power of transmitting the Dharma. As no one talks during dharma transmission, there's no dharma to be talked about or passed on. But without transmission, there is no dharma. The Sixth Zen Patriarch Hui Neng called it an "animitta" (formless) method.