Speaking of Aragorn, this is probably my favorite moment in the books, wish they'd have found a way to include this full dialogue in the movie:
Same still eyed Strider dubiously. 'How do we know you are the Strider that Gandalf speaks about?' he demanded. 'You never mentioned Gandalf, till this letter came out. You might be a play-acting spy..., trying to get us to go with you. You might have done in the real Strider and took his clothes. What have you to say to that?'
'That you are a stout fellow,' answered Strider; 'but I am afraid my only answer to you, Sam Gamgee, is this. If I had killed the real Strider, I could kill you. And I should have killed you already without so much talk. If I was after the Ring, I could have it — NOW!'
He stood up, and seemed suddenly to grow taller. In his eyes gleamed a light, keen and commanding. Throwing back his cloak, he laid his hand on the hilt of a sword that had hung concealed by his side.... Sam sat wide-mouthed staring at him dumbly.
'But I am the real Strider, fortunately,' he said, looking down at them with his face softened by a sudden smile. 'I am Aragorn son of Arathorn; and if by life or death I can save you, I will.'....