Assuming that Odin isn't going to pull the Jambjorn anti-cellestial armor spell that he's never used out his ass there is actually something that Apocalypse can contribute to this fight as most of Odin's attacks aren't going to do much to him. By feats, however, Thanos would have to do most of the offensive heavy lifting and he's not really in Odin's class as it stands. There best chance would be to make it a physical fight rather than trading blasts. Odin wins the heavy majority though.