Odin,
The only Lord of Order/Chaos who could make a fight with Odin (and that is with absolutely everything going his way) is Mordru and only 30th century at that. The only reason he could make such a fight is because he has a habit of draining energy from his adversary to use against them.
Even Classic Fate (who's lower down the totem than Nabu) could take out random god's so I don't see Vishnu (I'm assuming the public domain one as I don't know any other) being a threat to either