I create this thread half as a parody and people are looking into the depth of its question. I was thinking about how Aquaman is often parodied as "useless" among other super heroes because it's unlikely that anyone would battle in his turf. But to see that the thread polls are tied, I am surprised and even look into the question's depth myself. It seems that Aquaman has the advantage if the ocean were the battleground. It's after all the only place Aquaman could be fought. So all it really comes down to is where the battle goes down.