Dragons and Balrogs

Is the question which creature is more evil, or which is more powerful? If it's which is more powerful, I would say that Dragons are, of course. Dragons had the power to destroy whole cities, and the only way Dragons are killed is-Bard with a lucky shot, or coming up from underneath and stabbing them (with the sharpest sword ever I might add lol). Just think of it like this.. You pit a Dragon against a Balrog, c'mon, be honest... who do you think would win? The Dragon could probably eat the Balrog, lol. The Balrog probably couldn't even peirce the Dragon's skin.