Perhaps he was a bit too gruff or something, especially in the Fellowship of the Ring? I could possibly see that because in the book he was definitely clear-cut 'rough and ready good-guy'.
In the movies he's a blubbering wuss. He whines about how weak he is and how weak men are, he talks about how he doesn't want to lead, he can't lead, blah blah blah. It takes Elrond saying, "you're not getting any elf strange if you don't act like a leader," for him to shape up.
And Storytelling 101 tells us that an important protagonist needs to have a character arc.
The thing is, Aragorn doesn't have a character arc in the LOTR books. His character is largely static. His entire arc was in the backstory, prior to the events of the books. By the time the book starts, he knows exactly what he wants, he knows exactly what he's willing to do to get it, and he does it.
The film, in order to give him an arc, muddied those waters. He turns from being a noble, confident, driven man, into a wishy-washy one-foot-in-one-foot-out wandering stoner, who spends most of his time moping, and the rest with no idea of what he wants, or what he should do to get it.
It makes for character development, but it is not an accurate portrayal of his book character. Much of his nobility in the books comes from him not having these kinds of hangups - he knows what the right thing to do is, and he does it, and people around him are awed by his conviction and charisma.
I usually don't like 'great man' stories, but I have a soft spot for his part in the LOTR books.
Not only that, but even the character arc in the backstory (the Tale of Aragorn and Arwen) is nothing like the arc portrayed in the movies. Even as a young man, Aragorn is noble, confident, and driven: he is only twenty years old when he returns from great deeds in the company of the sons of Elrond and is told his true name and lineage, and from that point he knows he wants to fulfill that lineage; he is never in any doubt about it. His character arc is about all of the things he has to do and all of the knowledge he has to gain in order to be able to fulfill his lineage when the time comes.
In the film, he hemms and hawws, and can't make up his mind of whether or not he wants to be king, but he never actually articulates a single reason for why he would not want to be one.
The film:
* Expects the audience fill in the blank for why he doesn't want to be a leader.
* Tries to make him more sympathetic as a leader, by turning him into a reluctant leader, as opposed to a guy seizing power because... Something something nobility, something something hereditary monarchy is how things are done in Middle Earth, but doesn't fly super-well for modern audiences..?
What was a tough pill to swallow was the self-doubt infused into the character. I know I know, character development, relatability, etc etc. But, c'mon, Aragorn is the damned KING and a leader with unflinching will (a contrast to many around him).
...
Also, where was the damn standard w/ the White Tree, Elendil when Aragorn arrived at the boat?!
