I've listened to several Joy Division things today, including some early material when they went by the name Warsaw. For several years they were my favorite band, and are still up there in the top 5.....
Probably my favorite song by them is Decades, the last song on the Closer album. In hindsight, knowing of Ian's suicide, this is such a powerful song to me. There is a keyboard "solo" towards the end that just sounds so frail...and of course the lyrics are very fateful.....
EDIT: and the first single that new Order had post-JD was Ceremony/In A Lonely Place. Written while they were still Joy Division....the B-side is also incredibly powerful lyrically and in mood. Again, especially in hindsight....and it was the last demo ever recorded by the group apparently
Lyrics:
Caressing the marble and stone
Love that was special for one
The waste in the fever and heat
How I wish you were here with me now
Body that curls in and dies
Hardship that often belies
Warm like a dog round your feet
How I wish you were here with me now
Hangman looks round as he waits
Cord stretches tight then it breaks
Someday we will die in your dreams
How I wish we were here with you now