Silmarillion: Main characters (Book report)

[Tuor of Gondolin]

the phantom would pick Feanor and Turin because they are by far the most interesting characters.

And no, that's not an opinion, that's just the truth.

I disagree with the Phantom's opinion.
I'd suggest Maedhros as the most interesting and conflicted person, and the character who arguably most drives the story overall.

Earendil is clearly a/the key secondary character. Is Turin really
all that important to the tale of the Silmarils? Tuor, Beren and
Luthien, and Morgoth it seems are more relevant secondary
characters. But in a Shakespearean tragedy (or perhaps more
a Grrek tragedy) sense, I'd say
Maedhros should be the key character to the tale overall. He
tries to mean well but at numerous times feels compelled to
follow an evil and hopeless path.