Moroni? Just where did he come from? Was he raised from the dead? Did he not come from the past? He is the one that delivered the Golden Tablets to Joseph Smith, you know, the Golden Tablets that no one has seen but Joseph Smith, a well known conman.
And please, in regards to the "levels of heaven", you seriously need to go back and reread Corinthians 15: 40-41. It doesn't come close to claiming three levels of glories, let alone three levels of heaven.
I mean did you never attend the Hill Cumorah Pageant? Come on, white people coming to North America before the birth of Christ? Did they ride on the backs of dinosaurs too? Look, I know the Mormon church has attempted to evolve, but at its core it is a racist, homophobic, misogynist cult, period.