After I went through James Bastien's Great Hymns Arranged for Organ last year, I thought I would try to come up with my own arrangements of hymn tunes that were in the same sort of simple style.
I used Melodia 8' and Flute 4' on the lower manual (and added Trompette 8' for the second verse), Open Diapason 8', Gedeckt 8', and Hautbois 8' on the upper manual, and Sub Bass 16' + Gedeckt 8' for the pedals.
Played with the pipe organ sound on my Hammond SKX, with the Hammond XPK-130G bass pedals
(Part of the reason I'm posting this now is that I've run out of musical features to write about in hymns, aside from those in hymns that are seasonally specific.)