There are many faiths, so why Islam in particular?
Islam is not just a faith among other faiths!
Islam is the creed that agrees with what all the prophets and messengers came with. Islam came to adjust the path of faith that went awry and it came to return people to the path of all the prophets starting with Adam, going by Noah, Salih, Job, Eber, Abraham, Moses, David, Jonah, Aaron and Jesus. All of these came with the message that their God is just one; according to the Torah and Gospel13.
This faith knows no trinity, hypostases, gods committing suicide, extracting a god from another god – like extracting the Holy Ghost from the Father – or national gods.
Allah says what means, “Allah has ordained for you the same religion which He enjoined on Noah, and which We have revealed to you, and which We enjoined upon Abraham and Moses and Jesus, so that you should remain steadfast in religion and not become divided in it. What you call upon the polytheists to do is hard for them; Allah chooses for Himself whoever He pleases and guides towards Himself those who turn to Him.” (TMQ, 42:13).
Allah also says what means, “We have sent revelation to you [Prophet] as We did to Noah and the prophets who came after him, to Abraham, Ishmael, Isaac, Jacob, and the Tribes, to Jesus, Job, Jonah, Aaron, and Solomon and David, to whom We gave the Psalms.” (TMQ, 4:163).
Hence, Islam is not like any other faith because it is the origin of all faith and the refinement of the serious deviation that afflicted all the past faiths, particularly Judaism and Christianity in both their version; the old and new testaments.
[Renounce your Atheism by Dr Haitham Talaat, p.18-19]