I too had forgotten about Brandy. It has to be right up at the top of the list. I still like Southern Cross (I finally added it to post #6). It is one of my favorite Crosby Stills & Nash songs.
I mentioned this earlier but didn't post the video. This version is Gary Brooker (Procol Harum) singing Salty Dog in front of the London Symphony Orchestra. Warning, the first 1:34 is orchestra lead in to the vocals.
I always liked how they could build all sorts of nifty stuff out of junk they found on the island, but couldn't figure out how to patch the hull on the Minnow!