P.S. Funny enough, but this whole debate between the Old Gods and the Maker, actually reminds me the..."intriguing" situation in which Greeks were, when Christianity was starting to spread out calling them to deny the Twelve Gods of Olympus as false..
This is exactly the consideration from which my questions stemmed.
I'll try to clear up my reasoning.
Aside from the Dwarves who worship their ancestors, there are (at least that we know of) three past or present major beliefs in Thedas: the
Chantry, the old
Tevinter religion and the
Elven lore. As far as I see it, the Tevinter religion and the Elven mythology aren't mutually exclusive, because the Old Gods of Tevinter may well be the evil divinities mentioned by Elven lore, the ones locked away by Fen'harel the Dread Wolf. Of course this is a speculation, but I haven't seen any proof that this parellel is wrong.
About the Old Gods, David Gaider said (
here) that:
The Old Gods were trapped in their ancient prisons underneath the
earth. Their minds, however, roamed the Fade -- presumably the same as
any dreamer's might -- and contacted the first magisters (who back then
were known as "dreamers" and had learned on their own to walk the Fade
as mages do now).
So they weren't spirits, really, no. Spirits are creatures that are native to the Fade.
So, if this is true, the Old Gods were actual beings - dragons, probably - with an intelligence so developed that they were able to lure men and corrupt them, something that it is also true for Elven lore: the evil gods were malevolent entities that were imprisoned underground (as per Fen'harel myth).
The problems begin when one takes into account the Chantry version. Neither the Tevinter religion nor the Elven lore mentioned a Maker, a uber-god that created all things. However, the Chant of Light does. So, to sum it up, while both the Tevinter religion and Elven lore can explain the darkspawn and the Blights (the Golden City could have been the seat of the good gods of the Elves, for example, or only a sacred place of power, or even the seat of another Old God who cared for mankind), these two beliefs are
mutually exclusive with the Chant of Light.
They all may be false. But if true, only some of them can be true: not all three.