Good call on Gordon Lightfoot's If You Could Read My Mind, Mr Hughes. Cracking song.
I also get a bit of a lump in my throat to:
No Regrets - The Walker Brothers
Something Inside So Strong - Labi Siffre
Wonderful - Everclear (proof that a song doesn't have to be slow to be a tear-jerker).
Ideal World - The Christians
Then You Can Tell Me Goodbye - Bettye Swann (simply jaw-dropping version of John D. Loudermilk's lovely song by a criminally-underrated late-60s soul singer).
On the "guilty pleasures" side, Slipping Through My Fingers by Abba always gets the hairs on the back of my neck standing up, as does Freiheit's Keeping The Dream Alive. Heh heh. Good job I had no credibility to start with, eh? ;-)