in space? That's a lot of floating, confused Asgardians...
LOL, this is a good point. In space most of the Asgardians would be useless. So basically Odin and Thor vs. an entire planet full of sun dipped Kryptonians.
At best Thor could take on 10 or so Kryptonians, and at worst, he would not defeat Superman, depending on your point of view. So it is really Odin vs. all of Krypton in my opinion. Is there any feat of Odin destroying this many characters, at such a high power level, all at once?
He couldn't remove Thanos, and last time I checked, Thanos can't do magic or reality warping. If all Kryptonians walked on Asgard, then Odin would fear that his own power might destroy Asgard, that'll give away a chance.