@taichokage: there is nothing Hao can do to take supes soul. I recently seen some interesting scans on CV. dc's Death can't for some stupid reason do it and therefore a special Death was made and he took did it but on there way to heaven supe still got back.
I don't wanna go look for the scans so I'll just say hao wins
Define which Superman you are using before we discuss this further... There are too many versions for it to be unstated with a character like Superman. Second, Hao's reaction speed can't keep up with Superman.
Reaction times mean shit to an opponent who is omnipresent(i.e. present in all points of time and space/present everywhere). Hao can soulsuck him from any point of time or space if what I hear about this guy is true.(but I do remember someone saying that Hao's omnipresence extends only on the planet or something like that.)