The whole reason I'm agnostic is I can't see one religion being more or less real than another.
That's more or less where I'm at, though I grew up in a non-religious family.
Anyway, I have yet to see any concrete evidence for the existence of an afterlife/spirit world. And as far as gods are concerned, I don't think they are any more real than fairies, goblins, leprechauns, or [name a mythical creature of your choice].