LDS apologist, Michael T. Griffith, has a useful page, "Which Church is Right? Evidences for the Restoration" which discusses various elements of LDS theology, including soteriology. Some good pages therein include:
The New Testament and Early Church Fathers vs. the Protestant Doctrine of Salvation: Evidence of LDS Salvation Theology
Is Baptism Necessary for Salvation?
Can Genuine Christians Fall Away?
Michael also has a useful paper, "The Son's Subordination to the Father in Early Christian Writings" showing that primitive Christology was subordinationist.
The New Testament and Early Church Fathers vs. the Protestant Doctrine of Salvation: Evidence of LDS Salvation Theology
Is Baptism Necessary for Salvation?
Can Genuine Christians Fall Away?
Michael also has a useful paper, "The Son's Subordination to the Father in Early Christian Writings" showing that primitive Christology was subordinationist.