If the Olympian gods had to battle for supremacy, why would Zeus win?
Zeus won because of the use of his thunderbolt weapon. This led him to overthrow his father after he drew lots with his brother Hades and Poseidon, and became the ruler of the other gods. Read more on http://www.classicsunveiled.com/mythnet/html/olympian.html and http://www.desy.de/gna/interpedia/greek_myth/olympian.html.
because it says that he is the strongest of them all
He would not !
I dont think he would, i think ares would, god of war
He would not because he is not real.