- Beren/Luthien, since Tolkien calls their story as the "the chief one" in the Silmarillion;
- Earendil seeing that he is named the greatest Half-elven
- just seeing how many heroes he rescued, I would also consider Thorondor;
- Finrod helped the establishment of Men to the greatest degree,
- Feanor, chief gifted and trouble-maker

- Turin, for all the drama in his life, and his foretold role in the last battle.