List your favorite hymns/hymn tunes.

There's a sweet sweet Spirit

Blessed Assurance

To God be the Glory

Have Faith in God

Standing on the promises of God

The Blood will never lose its Power

Helmsley (Lo, he comes w/ clouds descending)

Vigiles et Sancti (i.e., Ye watchers and ye holy ones)

Rustington (by Parry)

Westminster Abbey (i.e., Christ is made the sure foundation)

Thaxted (a fave long before it  was sung at Di's & Charles's wedding!)

Monk's Gate

Jerusalem (of course)

Grafton (i.e., Therefore we before Him bending -- NOT the plainchant, obviously)

Schmucke dich

Ton-y-Botel ('Ebenezer,' 'Saint Patrick's Breastplate'), but only when played by an organist with brass :::ahem::: stops -- this one used to give me goosebumps.  The fact that this tune is so often played like a dirge is roughly half the reason I decided to learn to play organ.

Aberystwyth (the choir I sang with as a kid always did 'Watchman Tell Us of the Night' to this tune -- much better, IMO, than the plodding Mason version)

St. Theodulph ('All Glory Laud and Honor')

Vigiles et Sancti (yes, I know this has already been mentioned, but I believe it deserves double mention)

Like the Murmur of the Dove's Song

Nettleton ('Come Thou Fount of Ev'ry Blessing')

Tallis' Canon ('All Praise to Thee, My God, This Night')

Lo, How A Rose E'er Blooming

...I guess it would also be reasonable simply to write "insert all the classics from Lessons and Carols here," since I have always loved singing those.

As a kid I was also fond of pretty much anything that employed dashing imagery of fiery angels, triumphant battles with death, and the like, especially when there were minor keys involved, and while I'm pretty sure I'd still enjoy them, I can't remember all the titles.  Drat.