So- for my 24.75" scale stuff (daylighter, starliner, banshee) I REALLY prefer Spanish Cedar necks. I'm really in the minority camp here but I HATE super stiff necks. Lets not confuse stiff with stable. You can have a stable neck that isn't stiff (mahogany).
Here's what I've found in these models. When we've done maple neck ones or Cocobolo (once) the stiffer, denser the neck the faster the response is but the faster the decay. They also tend to have a "plunk" to them I don't care for. The Spanish Cedar necks have a bit of a compressed nature with a slower rise but a longer decay. They "bloom" for lack of a better term. The all Cocobolo neck was gorgeous, felt amazing, sounded terrible to me. All nasally midrange. The guy who owned it, LOVED it. I hated it.
What I find is the body and neck effects the tone obviously. The body is kind of What you say, the neck is how you say it. To me, the magic in these guitars really is the neck above all else.
Now Arcturus, it's 25.5" scale with a maple neck. The Alder / Maple combo sounds like what you'd expect it too, a Strat. The Spanish Cedar / Maple combo has a bit of the magic from the normal line. Again, even with in maple I don't want the stiffest, quarter sawn neck. I tend to prefer flat sawn, eastern maple. Compared to Hardrock (especially quartered) it's the same analogy. Hard Rock Maple imo gets so damn stiff it's VERY plunky. Eastern, flatsawn tends to be a smoother sounding maple to me.
So there we go. I'm in the minority off this subject.