A previous question asks about the comparative timescale of the flood story that appears in the Book of Genesis and the one that appears in the Epic of Gilgamesh. An interesting apparent difference is that Noah was told to save himself by the same God who sent the flood, while Utnapishtim was told by Enki (Ea) who was only one of many gods.
In the Biblical flood, God wishes to destroy both humanity and the earth, because of the corruption and violence that had engulfed both due to the evil of humans (Genesis 6:9). Was there a similar motivation for the Mesopotamian flood myth? Did the gods (presumably plural) wish to destroy both humanity and the earth, or only the former, and was it because of the evil of people? Did they all sanction Utnapishtim's survival as a "good man", or was he more of a "rebel" against the will of the gods?