Where are you getting the idea that Raja Puri and Dw. Brazilian (Prata) are yummy?
There's only a few members left on the org that still believe that.
Banana breeding program at Embrapa
Brazil's Agricultural Research Corporation
" ‘Maçã’ is the most preferred banana type by Brazilians. Its skin is thin and it has a smooth pulp and an apple-like taste."
" ‘Prata’ was introduced by the Portuguese since 1500 and, for this reason, the Brazilians, specially from the northeastern and northern regions, demonstrate a clear and constant preference for the ’Prata’ flavor. It has small fruits of sweet to slightly acid flavor."
N. W. SIMMONDS
"Brazilian. An AB-type triploid; The fruit is subacid and of poor quality; it has little to recommend it as a dessert banana (to a West Indian - Caribbean trained taste, at least), and its acceptance in Hawaii seems to be a good example of the power of need and habit in influencing the demands of a market."