There is no "perfect" solution that fits everyone's needs at any price. Our hearing and preferences differ for the most part and ultimately whatever combination of components give you the most satisfaction within your budget will be "The Best" that is until the next best thing comes along. So, it is a vicious circle, but fun.
The premise of the JH-3A--to be able to "simulate" programmable DSP preferences depending on variables such as recording, genre, listening preferences, etc.,--is what makes it special as a concept in a portable form factor. It makes sense to get it with the JH16 customs just because you can "simulate" a JH13 signature, while the reverse is not quite true, because of the differences between the more advanced design of the JH16 (triple bore/quad-bass drivers with more headroom).