Okay. So I have some ties. I'm going to include three books in this. Two of them have 7 votes and one has 5.
Anyway, we have:

Struggles of a Teenage Ensign (Chekov)

Hello (Spock)

A Child of Two Worlds (Spock)

You can now vote on those three. I will rally up all the votes from this chapter and whichever wins, wins.