I don't fool myself thinking that Peters "outsings" LuPone, but I'm more into well-acted performances than well-sung performances, and so I much prefer the Peters recording because I find her Rose to be superbly acted and far more layered than the performance I saw from LuPone in the summer (which I loved by the way, but Peters is my number one choice). It really is a matter of opinion.
What I think will make this recording definitive for me though is the supporting cast, starting with Laura Benanti, Boyd Gaines, Leigh Ann Larkin, and Marilyn Caskey.
"Some people can thrive and bloom living life in a living room, that's perfect for some people of one hundred and five. But I at least gotta try, when I think of all the sights that I gotta see, all the places I gotta play, all the things that I gotta be at"