At the recent Markham GTG, I was knocked out by how flexible yet intuitive the switching system on the Wenge-necked ABII XXX was.
It had the 4-way rotary, plus the 3 mini switches for coil switching each pickup between series and parallel mode.
The voicing of that electronics package is all Dingwall, all the time, yet lurking in there are flavours of every classic tone you've ever heard: P, J, and MM were all present and accounted for, and then the mini switches let you make subtle shifts for other colours including burpy, mid-forward tones like Alessandro Stellano gets from his ABZ, or the sounds I associate with the original Warwick Thumb.
The whole time we were all checking it out, it was always in active mode, yet hardly anyone touched the onboard EQ or the controls on the amps we were using. Of course, the EQ and the active/passive switching were still there, allowing you to further influence your tone without taking your hands off the bass. Fingerstyle, pick or slap, it was all there.
At least I n my mind, the only other choice that needs to be made is whether you want long or short scale.
It wouldn't matter to me whether I was choosing the Prima, AB, Z, SJ or SP as the basis for my desert island bass: that's the pickup and control package I would order. One Bass to Rule Them All...