Here's some information to defeat the notion that most NDEs are the same:
http://www.bbc.com/future/story/2015...ly-like-to-die
they reported dream-like or hallucinatory scenarios that [Sam] Parnia and his co-authors categorised into seven major themes. “Most of these were not consistent to what’s called ‘near-death’ experiences,” Parnia says. “It seems like the mental experience of death is much broader than what’s been assumed in the past.”
Those seven themes were:
Fear
Seeing animals or plants
Bright light
Violence and persecution
Deja-vu
Seeing family
Recalling events post-cardiac arrest
While the article is fluffy and speaks glibly of bringing people "back from the dead", and also begins with a strongly woo story suggesting OOBe is real, it's still got some interesting stuff in it.