Who Would Win?

Set up a scenario:

Dark One is actually revealed to be Morgoth, the first Dark Lord and Satan in Tolkien's Legendarium. Sauron, his greatest servant, who was walking the world in the form of Shaidar Haran, succeeds in releasing him, unlike the Forsaken. Aside from Morgoth, his entire host of fallen angels is released: Balrogs, Dragons, Ungoliant and all other fell spirits and Maiar get released from the Void. Let's say this happens somewhere around Book 9 or 10.

Let's say only the fallen Maiar where imprisoned with Morgoth in the Bore: not Orcs or etc. In that case, all the demons, Balrogs, Dragons and many, many others, are released into the world.

Mind you: these are the creatures who, during the Music of the Ainur, sang the world into existence. Dark One/Morgoth is the mightiest among all of them. They make the Forsaken and Shadowspawn inconsequential: they are the Shadow.

Can Rand do anything to stop them? How could he deal with them? Can Tarmon Gai'don still go on the same? Can channelers, in any way, outmatch the fallen angels? (Bonus: which fights would you gladly see? Mine is Sauron (in his fair form) vs Lan.)

I think this would be an interesting discussion. Thank you in advance!