What is the difference between Meher Baba and Sai Baba? Are they both purna avatars?

Shri Barry Evans asked: Dear Swami, I have had the darshan of Sathya sai baba twice and once in a dream. He totally changed my life and blessed me with material prosperity which I realise now is empty without God. Recently I have become acquainted with Meher Baba and his teachings. I am a little confused as Meher Baba also says he is the one God. What is the difference between Meher Baba and Sai Baba, are they both purna avatars? Also Haidakhan babaji is said to be a maha avatar of sadashiva who was not born from a woman (one of the immortals) who is the most powerful highest avatar of these 3 avatars? Thank you. Sincerely, Barry Evans

Swami replied:- The difference among various human incarnations is in the quantity of exhibited power alone. The possessed power is the same in all incarnations. The same unimaginable God (more specifically called as God Datta or Father in heaven) comes as different human incarnations to deal with various different programs for different levels of devotees. The possessed power of the unimaginable God is one and the same in all the incarnations and hence all the human incarnations are equal and must be respected equally. The different quantities of the expressed power are based on the different requirements of the programs for which the same God comes to give solutions. A professor may go to LKG class in which he will teach only alphabets. The same professor goes to PG class and teach complicated topics like quantum mechanics. He can’t express his full knowledge in the LKG class, which does not mean that he knows only alphabets.