The following hymns (as opposed to motets, anthems etc) always move me greatly:
Lo! He comes with clouds desending
O little town of Bethlehem
As with Gladness men of Old
My Song is love unknown
Lord Jesus think on me
When I survey the wondrous cross
Come down, O Love Divine
Hail to the Lord who comes
For Mary Mother of our God
Sing we of the Blessed Mother
Ye Holy Angels bright
Christ is made the sure foundation
In our day of thanksgiving
Glory to thee my God this night
Bread of Heaven on thee we feed
Sweet Sacrament Divine
Abide with me
Jerusalem the Golden
All People that on earth do dwell
All Hail the power of Jesus name
Firmly I beleive and Truly
As pants the heart
King of Glory, King of Peace
How shall I sing that majesty?
How sweet the name of Jesus sounds
Jesus, love of my Soul
Lead us heavenly Father, Lead us
Love Divine, all loves excelling
to name but a few.