Eternal punishment is pointless.

[Esquilax]

Although, overall the stories are totally different, portions such as the tree and the serpent corroborate one another as far as what knowledge had been passed down through generations concerning the earliest times.

But lemme guess, they all originate with your god, right?

Often myths have a basis in reality. There are also many other "great flood" stories from around the world, which would lend credence to the belief in a worldwide flood.

Except that the actual physical evidence, the geologic column and numerous other civilizations who apparently continued on without ever noticing that they had been destroyed in a flood, contradict the idea of a worldwide flood. Physical evidence doesn't lie, so what we're left with is a bunch of accounts of a "worldwide" flood that could not have happened.

A simpler explanation is that there have been a lot of floods in the world, and the idea that they're worldwide monster floods is just exaggeration or metaphor. When your entire world is basically a few miles around your village or town, then a lot of relatively small events can be worldwide.