Stevens,I think when one likes an artist as much as we like Gordon Lightfoot...yes,it does become difficult to choose an ovrall favorite song.
When you only know the "Top 40 chart hits" of an act,then it's easy. I'd simply say (for example) my favorite Joni Mitchell song is,"You Turn Me On (I'm A Radio)".
I don't know her whole catalouge like I do Gord's so it's easy to pick one song. My favorite changes all the time too,although for the past year & 1/2 I've heavily favored "End Of All Time". Maybe because it was the greatest surprise to come out of "Harmony".
..but,I also have favorite ballads by Gord,like "Beautiful","Your Love's Return" and "My Love For You" etc... I can't make a final choice,so I just say,"There's some I like very much and some that are pretty good." A lot easier than trying to pick "1".
P.S.Don't feel to bad Cheryl,I live in Phoenix and it's the upper 70's right now (12:30pm) in late November!!

I want winter weather!!