Weeeeell, the thing with the souls (shadows) in Hades is that they were to be reborn. This is actually Persephone's job - to have them drink the waters of Lethe (River Amnesia) and send them back up to a new life.
Valhalla... brawls, eating all day and as much mead as one can drink - where can I sign up?
Nah, joke, I already did, this is actually kind of my religion :). There are parts of the Edda that can be interpreted in such a way that the souls in Hel (that's where the word "hell" comes from, though Hel is described as both cold and damp) are waiting to be reborn - it's just unclear if that happens continuously or after Ragnarök.
The thing about old polytheistic religions (which the elvish religion is modeled after) is that the gods are personified forces of nature, which are both potentially positive or destructive. So all gods have a light, benevolent and a dark, malevolent aspect, which is very confusing for people who grew up in a society with the notion that a god is only good, and everything destructive is evil.
What I find interesting about the Chantry, is that there is no opponent to the Maker, like God and the Devil. Yes, there are Fade Demons and Abominations and Blood-Mages, but that isn't quite the same. There is a Creator, but where is the Destroyer?