Granted. But then they cause so much trouble (mainly because they themselves keep arguing and ending up with duels that destroy the house where they live). During the Council of Elrond, they get stuck in an argument and destroy the long table, much to Elrond's annoyance. "My children have never caused such trouble, not the twins, nor Arwen, nor my adopted Estel!" Nice work, you.
I wish Feanor made four Silmarils.