"Durin was slain by it, and the year after Nain I, his son; and then the glory of Moria passed, and its people were destroyed or fled far away."
- Lord of the Rings appendix A, Durin's Folk
Also, when the dwarves had an army (one powerful enough to besiege every goblin stronghold one by one in the Misty Mountains) during the War of the Dwarves and Orcs, they refused to delve into Khazad-dum because they feared to face the Balrog.
Bard and Frodo? The ****? Since when was Frodo in the Hobbit?
Bard knew what to look for. He was told where it was, and so he simply checked the vicinity of Smaug's left breast.
Bilbo was able to take his time and stare at Smaug's underbelly more then once without interruptions.
A simple Elven archer wont have such a luxury.
Beleg was a grey elf, during the time of the First Age, and was the best archer of the Elves, sorry, but they are not making an arrow as good as his.
Durin's Bane was a disappointment compared to the Balrog's in the Sil.
Only good thing Durin's Bane had going for it, was when it was 'killed' and it broke the mountain side.
I'd assume that Durin's Bane was in a weakened form, which most likely was why it was disappointing.
Erebor knew Smaug was coming, they heard him, it was Dale that was taken by surprise.
Yep, it took a year for DB to destroy a kingdom, whereas it took Smaug a matter of hours to take out an entire city and a kingdom.
Gender: Unspecified Location: The balance of the Force
Smaug and Durin's Bane had no direct influence from Sauron following the War of the Silmarils. It is however inferred in Tolkien's notes that he would make deals with them. Using Smaug to destroy Erebor, Dale and Thranduil's kingdom. Durin's Bane to break Moria and Lorien.
Knocking out some of the greatest kingdoms among the Free People's and allow Sauron massive gains in the field with little expense of his own.
It is the same as deceiving Numenor into an attack on Valinor and using Angmar to wipe out Arnor.
Within your furnace heart, you burn in your own flame. This is how it feels to be Anakin Skywalker.