I’m thinking of the first “original” as a baseline, and I love and always have loved Barbara Cook, but choosing a second isn’t as easy. I love “Make Our Garden Grow” and at least two of the newer versions didn’t include it. There’s also some version in which the lyrics of “Best of All Possible Worlds” are completely changed from the original. I like the first version.
If you’re interested, there’s a great website with a collection of contemporary comments when the first version was produced. URL is “geocities.com/bernsteincandide Berstein’s Candide”. Lillian Hellman was as miserable with the production as critics were with what she was writing. A bad mix from the start judging by