Buddhism is actually a philosophy or a religion. It depends on the form of Buddhism, however to follow the Buddha's original teachings it would be considered a philosophy. Siddhartha considered himself a man not a god, and his teaching was an end to suffering. The religion came about later, and would take to long to explain how and why. I guess Voltaire was right "If God did not exist, it would be necessary to invent him".
Oh, and the Qu'ran was given to Mohammad by the angel Gabriel not directly from Allah. Also you will find that the Torah and Bible are templates for the Qu'ran as the Qu'ran is supposed to supercede these books.
As for all your beliefs to each their own. Who would have thought studying philosophy, one would learn about the many world religions.