I thought I voted on this poll, but apparently I didn't.
I chose the LSFNY version. I had bought LSFNY at Hastings, and this was the first time I heard the song, including Learning to Live and A Mind Beside Itself Suite. After this, I borrowed a friends ACOS EP and ripped it onto my computer. Although I enjoyed hearing the recorded version, it was missing something. There's one vocal line on LSFNY that is not on the recorded version, it's where JLB screams "Please Don't Go". I feel those words add a lot to the overall meaning of the song. JLB also did not sing those lyrics during the I&W&B tour, I did sing it aloud though, and I am sure there were others in the audience who did so as well.
I am also very glad that I got to see this song live. Who knows when they will play this song again, and if they don't play it again, I will be glad to have been at the last show they played the song. I hope they do make it to a 50th anniversary and decide to play this song.