Who would win in a duel between Glaurung and Ancalagon? - Quora

Is Smaug as powerful as Sauron?

Smaug vs. Durin's Bane: Who Would Win in the Ultimate Dragon/Balrog Showdown?

What if Glaurung attacked Lake Town instead of Smaug? - Quora

Who is more powerful, Glaurung or Ancalagon the Black? - Quora

What is the most accurate size estimation for Glaurung the dragon? - Quora

Who would win in a battle between Smaug and Glaurung? - Quora

Who would win in a duel between Glaurung and Ancalagon? - Quora

What killed Ancalagon the Black? - Quora

Could Ancalagon the Black (LOTR) defeat and kill Aegon the Conqueror and his sister wives (GoT and ASOIAF), who are riding their dragons at that moment? - Quora

Smaug vs. Durin's Bane: Who Would Win in the Ultimate Dragon/Balrog Showdown?