Diabolic and Diablotin Super are different planes. You cannot compare them directly. For a 46 and calm weather, go with Diablotin Super. If you happen to have OS 91 fx or YS 91, then Diabolic is the choise. Diabolic compares best with Diablotin standard (same aerodynamics as super but more sturdy structure -- weight around 2500-2800g)

BTW I have heard some rumours about Diabolic having elevator flutter problems. It should be quality product but it is interesting to hear how your Diabolic performs. I might replace my Diablotin std with it.