I wanna say first that I did scroll through all 3 pages here in this thread to find Loser, and I'm sorry if I missed an existing thread. Captain, maybe you can consolidate if I missed it.
12-28-83 San Francisco Civic Auditorium
I have never been more exhilarated by a version of this song. Watching the youtube, the look on Garcia's face is incredibly anguished, and the crash down out of the solo break is truly a wild roller coaster ride. I'm not sure why this show is under the radar in general - including my radar - but this version of Loser cannot be overlooked among the all-time great renditions of this song.