The two most popular religion views are monotheism (or polytheism) However, they're not the same. Each religion is unique and has its pros and cons. One of the most important differences is the way that each religion views the world. Monotheism tends towards peace and allows all to worship the same God. This allows for the prevention of conflicts between civilizations.
Mythology
The difference in monotheistic and multitheistic mythologies doesn't lie in the nature or representation of the gods. In polytheistic mythology the gods are seen as the results of long-term interactions among gods.
Twelve Olympian gods were present in ancient Greece. They included Zeus and Hera. Demeter and Apollo were the other gods. Each god served a specific purpose, including providing sustenance. However, a few were left out, such Hades, who lived underground.
Morality
Monotheistic and polytheistic societies have different views on morality. While monotheism tends to favor absolute values, polytheism allows for relative morality. Both approaches are very different but both stress individual responsibility.
Monotheistic systems generally elevate one god to a supreme position. Then they treat all other gods as manifestations or the supreme god. They then become essentially monotheistic.
Religion
Polytheism is a different approach to religion than monotheism. Monotheists believe there is a single divine creator. Polytheists believe in multiple deities. Although each side claims to be right on a particular point, they disagree on what constitutes a true religion.
Monotheism arose from polytheism, but the exact reason is unclear. One of two factors have been suggested by modern religion philosophers as the reason for monotheism's rise.