Here's a question for anyone still following this thread.
Which of the Gospels do you think is the most mythologized? How about the least?
All of them.
There isn't one gospel that is free from exaggerated or idealized words or images, so to name one would be foolish. They all have their problems.
It is the consensus among modern scholars that the first Gospel to be written was called Mark. (because we don't really know who the author was and that goes for all of them.)
There are several reason that this gospel has such words and images.
Apart from the obviously suspension of belief in regard to physics. it shows ignorance of Palestine geography, was most likely written in Rome for a Romen audience, and largely made up in response to the old testament. I.E. the structure of literature is crafted from the Jewish scriptures, not recorded conversations.
The gospel called Matthew is largely dependent on Mark it is almost copied word for word. only making changes to the theology not the history.
The gospel called Luke, also relies extensively on Mark.
And the gospel called John tells such a different, and fantastical, story.
They were all composed between 70 and 110 CE as biographies of a Jesus, written after a crucifixion of a Jesus around 30 CE.
Therefore not one single NT document was written by anyone who ever met Jesus. Let alone an eyewitness.