The Fëanor inside Fëanor Sons

[Macalaure]

Good points Formendacil and Lalaith.
Yet we are told there was few love between Caranthir and the dwarves.

I just browsed through the Shibboleth and found out that the name Caranthir = Red-face is not meant metaphorically (which I thought before). He indeed simply had a reddish skin-tone - inherited from his mother. Adding to that his father's hair, I more and more obtain the picture of a quite torn character.

(And, even though I don't get the impression that he was the smartest of the brothers, he was a clever businessman.)

His deliberate seeking out of allies and vassals from among the non-Eldar is in direct contrast to Celegorm and Curufin's scornful treatment of Beren.

They didn't despise Beren because he's a mortal, but because of that Silmaril thing - very bad circumstances to start with.
We don't get to know their general attitude towards men, I think.