My list of favourite Christian authors would look something like this (in roughly chronological order, not order of merit):-

1. John Calvin – commentaries, Institutes
2. Thomas Watson – Body of Divinity, Beatitudes, Lord’s Prayer, Ten Commmandments
3. William Gurnall – Christian in Complete Armour
4. Matthew Henry – Commentary
5. C.H. Spurgeon – The Treasury of David, Lectures to my Students, An All-Round Ministry, Commenting and Commentaries (plus, of course, his many printed sermons)
6. J.C. Ryle – Expository Thoughts on the Gospels, Holiness, Knots Untied, Old Paths, Practical Religion, Christian Leaders of the 18th Century
7. J. Gresham Machen – Christianity and Liberalism, What is Faith?, The Virgin Birth of Christ, The Origin of Paul’s Religion, The Christian Faith in the Modern World
8. A.W. Tozer – The Pursuit of God, The Divine Conquest, That Incredible Christian, The Root of the Righteous, The Knowledge of the Holy
9. C. S. Lewis – Mere Christianity, Screwtape Letters, Miracles, The Problem of Pain
10. John Stott – Basic Christianity, The Cross of Christ, I Believe in Preaching, The Bible Speaks Today (various volumes), Issues Facing Christians Today, The Contemporary Christian, Authentic Christianity, Evangelical Truth
11. James I. Packer – Knowing God, ‘Fundamentalism’ and the Word of God, God’s Words, Among God’s Giants, Collected Shorter Writings (4 vols), Keep in Step with the Spirit
12. D.A. Carson – The Gagging of God, Exegetical Fallacies, The Gospel According to John, Christ and Culture Re-visited
13. Donald Macleod – A Faith To Live By, Shared Life, The Person of Christ,