I don't know why I did not get Riesentraube to try. I saw plants of it and I have read that it tastes fabulous. I don't know if I would get rid of Juliet as it is so productive but this year I planted the entire 6 pack of them while I usually only plant 4. But possibly will just get more of the San Marzanos if they turn out to be a big hit. And they are looking very promising what with having lots of tomatoes set already. But then the Juliets also have lots of tomatoes set already.
Vivia Italia does very well for me but I do wish I could find San Marzano Retorta to try out.