Choosing the right Upgrade Harmonica

Hi to all, my name is Ray and I harken back to the 1930’s when I managed to learn to play on an old Marine Band. Here I am now in my 90’s and picking it up again and still loving the old folk songs, i.e. Oh Susanna, Bill Bailey and etc. I want to buy an upgrade to the Golden Melody I have now and and trying to decide between the Marine Band Deluxe and the Crossover . which is best for single note playing folk music.??