The
balrogs were destroyed, save some few that HID themselves in cavernsat the roots of the earth.
MOrgoth then loosed upon his foes the last desperate assault out of the pits of
Angband, the winged
dragons, that had not before been seen; and so sudden and ruinous was the onset of that dreadful fleet THAT THE HOST OF THE
VALAR WAS DRIVEN BACK, FOR THE COMING OF THE DRAGONS WAS WITH GREAT THUNDER, LIGHTNING, AND A TEMPEST OF FIRE. But here comes
Earendil, Thorondor and the rest of the greatest
eagles that lived and already with the host of the Valar which fought through the day and as
Tolkien describes a doubtful night. I do know that
Eonwe, the greatest warrior aside
Tulkas and
Orome the great fought along side also. Tolkien clearly writes of the magnitude of the battle with the dragons and states that the balrogs were destroyed and some fled before the coming of the greatest host ever assembled. This was the greatest army ever assembled, yet they fought for quite awhile a undecided battle untill the end when they were victorious, with the final help coming from
the great eagles and Earendil in his cool boat. Sounds pretty evident on who the tougher opponent was.