Gospel of John Commentaries

Here are my thoughts on Gospel of John commentaries:

The Best:
DA Carson's Pillar NT Commentary

Next to Best:
Leon Morris' New International Commentary

Best Short commentary:
Bruce Milne's Bible Speaks Today Commentary

Best Devotional commentary:
JC Ryle's Expository Thoughts (3 volumes)

Not worth the time or money:
-Kent Hughes' Preaching the Word Commentary
-Kostenberger's Baker Exegetical Commentary (This is a good commentary if it is all you have. However, Kostenberger usually just restates what Carson says. They are almost identical. No need to have both.)
-Beasley-Murray's Word Biblical Commentary (very weak volume; I sold mine.)