Your list is HARrrdd! only 4?! Does not compute...
Personally, To cover deliciousness from early, through mid, mid/late, and to frost.
RdB
Vista
MLK or JHA
Violette de Sollies/ Bourjasotte Noire
CdDN or Blanc
Preto
4 from your list: I haven't tasted my Nero 600 yet, so it would go, RdB, St. Rita, VdB, Violette de Sollies/Bourjasotte Noire