No person or thing can be compared to God, and to do so is pure sacrilege. (In Catholic tradition it was St. Michael the Archangel who challenged Lucifer when he compared himself to God, by saying: "Who is like unto God"?)
But these are pagan times we live in, and God and truth are merely what people happen to believe in today, not something that is eternal and unchangeable.
Well, that's why he is named Michael.
Or rather: mikha'el (abbreviation of mi khamokha eloheinu). Meaning "who is as G-d?"
Though for the record, I am fairly sure Michael is a seraph, not an archangel.
Their motive is their love for the pagan practice of contempative prayer.
No Buddhist worships Buddha. Buddha didn't call himself G-d and would have been repelled by such a comparison. He founded a school of philosophy, not a religion. The religion came afterwards but it doesn't resemble any other religion. There is no worship, it is only a struggle with the self and it's existence on earth