All of the options could not be posted in a poll so I opted for the did exist and was only human.
He existed in an Anti-Roman faction known as the Sons of God; who preached violent overthrow of the Roman oppressors. He, however, preached peaceful solutions. He did not even die on the cross, nor the same day as "removed". He did not resurrect himself, nor anybody else for that matter and died a natural death later on in life.
He was a regular Joe Bloggs who got created into a god like representation by humans later on.