their not that vulerable, they dont burn, their bones cant break, you would have to completly vaporise him or play a mind game with him to defeat God Kratos
and yeh i think Hades could take his soul, but Hades has to grip with his soul ripping chains, thats going to be an incredible battle, your likely to die in one hit unless you get special protection if he hits you with his chains, chains VS chain blades hmm, should be awsome, i forsee a lot of button pressing events when the chains get locked and etc etc, hes also an Agile god, certainly the most impressive nad powerful of the Gods i think, except Zues, yet Zues cannot take souls, this dude is gonna be tricky