[Oyk]

Oh okay.

Then no, the Quran did not specifically mention Jibril as the messenger for the Quran. The Quran only states that a being with mighty power delivered it (53:5). Of all the beings we believe exist, Jibril is probably the mightiest.

It took you very long to say that this belief about Jibril is an assumption.

Now as to which angelic being is the mightiest, is there a Qur'anic verse to support your assumption that it's Jibril and not Michael or Satan?