I don't think I can give a definitive answer to your second question, because it would first require a fairly complete analysis of the field of administrative justice.
As for what stands out, I would say that each of the courts is trying interesting ways to better manage its workload. However, given the significant differences between the mandates of each, a solution that works for one court wouldn't necessarily be appropriate for another. So it's difficult to make comparisons of this nature, but it's clear that each court wishes to modernize its activities and is making efforts in this direction.