Sometimes one of the others, like Blawan or Djampit (also spelled Jampit) might be better, but that's why we evaluate them all against eachother in an unbiased blind cupping. There is "Government Estate" Java from the 4 old farms (Kayumas, Blawan, Djampit, Pancoer) that date back to Dutch colonialism, and "
rivate Estate" Java. Government Estate is invariably preferred as they higher quality coffee although there are occasional exceptions. I usually have a strong preference when I get all the Gov't.
Estate samples in and blind cup them. But all in all, the cup quality at its best is nearly identical between them when they are at their best: it is not as if Blawan at its best has a remarkably different cup character than Kayumas at its best...