The Odin of the Vikings was most of all an extremely powerful magician, a wizard—not the nice kind of wizard like Gandalf, though he was one of Tolkien’s inspirations for the character, but the old kind of wizard—treacherous and murderous, with lies on his lips and blood under his fingernails. He delighted in war for two reasons—one in order to feed the wolves and ravens that were his familiars, secondly in order to fill his hall, Valhalla, with heroes who would stand with him at Ragnarok, the last great battle. To this end he raised heroes up and then brutally betrayed them. He was also, according to the eddas, a sexual predator and a known deviate.
The difference between these two Odins, I think, is suggestive of important—and generally unrecognized—elements in western culture. The script writers have confused Odin with the Yahweh of the Jews and Christians. It doesn’t even occur to them that a high god could be anything but kind and peace-loving, since we all have so thoroughly internalized Christian suppositions that even people who reject the Christian religion—and I assume that a large proportion of the people who made this movie do—can’t conceive of a religion founded on darkness, brute force, and the domination of the weak by the strong.