Technically, Rapture is only Jebus appearing and saying "To me my X-men" before he takes off around the world with his saints in an airship from where he nukes cities (using the arc of the covenant in order to "smite evil") before pressing the galactic reset button. The whole people being beamed into heaven was something some Puritan made up.
Personally, I think that would be a terrifying Apocalypse and one I would like to see just cause it all would play out like a video game / comic book / anime series where the bad guy (with good intentions) wins.