How much did you bet, yov?
Seriously, bond? I don't know.
Care about? You bet! (Oh wait, you just did.) I wish I could grab Túrin by the shoulders and yell, "All your choices are going wrong, get a clue already!" Silm characters in particular are epic, flawed, and very careable.
Aragorn now. I think this came up on a different board - Tolkien very successfully carried out the conceit that LOTR is a collective memoir of the four hobbits, supplemented with the Gondorian records. With a single exception (I don't count the fox), only that which the hobbits experience, or heard second hand, is on the page.
Aragorn is what he appears to the hobbits - competent, weathered, a little aloof, until the spark of Elessar breaks through. It's not, IMO, that he never has the moment of fear or doubt, it's that he is good at hiding them from the hobbits. He is a seasoned leader, and even thoroughly human RL officers learn to appear infallible to raw recruits no matter what. We can catch a glimpse of this at the breaking of the Fellowship. Notice that the hobbits are out of earshot, and Gimli and Legolas are experienced enough warriors that they don't panic when Aragorn admits to making a mistake.
Only after Merry stabs the WiKi, and after Pippin rescues Faramir does Aragorn begin to kid them about pipe-weed - he is ready to treat them as equals.
You sort of have to read very closely to catch glimpses of Aragorn's soul. It's really not unlike meeting people in RL. You don't know who they are, how they were raised, what they really feel, and they don't always tell you. If they don't, you have to pick up on clues to see behind the facade. That's another thing I love about Tolkien.
"What a place! What a situation! What kind of man would put a known criminal in charge of a major branch of government? Apart from, say, the average voter."
Terry Pratchett, Going Postal