What are the principal differences between Islam and the other two main monotheistic religions; Christianity and Judaism?

The monotheistic religions had prophets and messengers who brought the same message; that God’s worshipers need to Submit to Him alone. This proclamation was heralded by Abraham, Jacob, Moses, the Patriarchs, and all the prophets of God. Because of this, Muslims believe in all the prophets and what was given through them. Some messengers were directed to remove or add to a minor facet from God’s authorized religion, but those sanctioned changes did not make for a completely different religion. Instead, it is the added man-made rules that make such stark differences between the monotheistic religions. Surely, if the different religious communities were to apply God’s laws and scripture alone, they would have very little distinguishing differences and instead would have more commonality.