Martin D18 Authentic 1937 vs. Martin D18 1948

Upon request here is a short comparison of two fine yet different constructed Martin D18 guitars. Which one to prefer ? vintage Martin D18 1948: 00:10 2006 Martin D18 Authentic 1937: 01:35 Recorded with a Neumann KM84 microphone and John Hardy M1 preamp, no post processing, each guitar stringed with Elixir PB Nanoweb light, pick is a Bluechip TP-1R 60.