[Beregond]

Pitchwife's connection is excellent, but I'll have a go.

Perhaps I would be right in saying that the third-person narrative only follows the four hobbits and the three hunters? It does not follow Gandalf or Boromir when they are alone. I do not remember if Gimli, Legolas, and Aragorn are ever followed separately; maybe this is why you grouped them together.

(but the narrative also follows Fatty Bolger, and maybe more)