Ed, Doves, and Babylon the great watchers,
There is one possibility of Babylon the Great's identity that no one has brought up..  Zeph. 2 prophesies about the entire muslim middle east being destroyed in the vicinity of Israel including Ethiopia. Rev. 17 & 18 talk about the two witnesses lying dead in the street of the the city known spiritually as sodom and egypt.  Then presumably after that the Israeli remnant has fled to be hid by God in the Jordanian wilderness. With Israel gone, Jerusalem would then be the home of every unclean and hateful bird. We know Babylon falls in the lgreat tribulation , possibly near it's conclusion.
We know that Jerusalem will be trodden under foot of the gentiles for 42 months. We also know that the Al-aksa mosque is the second most revered site in islam, and it happens to sit on The Lord's temple mount, so it needs to be destroyed by The Lord with extreme prejudice.
Babylon can also be an allegory for what it was, a usurping consuming power that controls with force, idolatry and  economic monopoly..a perfect example of islam and  Christianity falsely so-called with heretical teaching that manipulates with lies and extorts money fraudulently. Jerusalem is the most likely suspect, in that Jerusalem was  said by the Lord to be who murdered the prophets and saints. ( Rev. 18 : 24 ; Lu. 13 : 34 ) Jerusalem to the heathen is more of an idol and source of merchandise and livelihood, hence their lamentation at it's loss,  than the revered City of Faith and crucifixion site we hold dear.

Just a thought

Alan T