I agree with you on the point that the different world religions make mutually exclusive claims about the afterlife. Ultimately the only way to know what happens after death is to have an authoritative eyewitness. I personally don’t count NDE’s because we have to get into the question of what is truly “dead” (and also gauge the truthfulness of the individuals spiritual experience — that is if they are more than hallucinations)

I take the position that Jesus is that authoritative eye witness — the whole Christian religion hinges on that. I find his claims, the historical documents, and eye witness testimony that’s been preserved from the 1st century too compelling.