Which would win in a fight? This is what I know about the two: Balrogs: >It's an evil Maiar, sort of a LOTR equivalent of an archdemon or the like, very powerful beings of fire and malevolence. >Very large, like house sized >Immune to fire, use it as a weapon >Durin's Bane (the Balrog in Fellowship Of The Ring) was able to seriously wound Gandalf The Grey, though it's body died at the end of the battle (It's spirit presumably survived). Whether Gandalf actually died before being carried off by the eagle to Lothlórien is up for debate, but this does reflect greatly on the strength of Durin's Bane, and indeed all Balrogs. Gandalf is an extremely powerful being, and it takes a foe of tremendous power to threaten him. >Gothmog, the former leader of the Balrogs, was killed when it was submerged in water, which put it's flames out. We can assume this method of extermination applies to all Balrogs. >Whether or not Balrogs could fly, or if they had or even needed wings to fly, is really unknown. Jackson's adaptation shows Durin's Bane with wings, but flightless, so for the sake of picking a side we'll look at this hypotheitcal Balrog that way. Remember, however, that the Balrogs are/were Maiar, and probably had the ability to choose whether or not they had wings at any given time. Dragons: >You know what a Dragon is. Big, scary, breathes fire, flies, all that jazz. >Dragons are huge, any given Dragon would likely be many times the Balrog's size >Dragon scales form great armor, making it impervious to most weapons. >Like the Balrog, Dragons are impervious to fire. >Dragons possess great intelligence and physical strength >It is unlikely that a Dragon would be killed by water like a Balrog, because it's physical form is made of flesh and bone. Which do you think would ultimately win?