Most unexperienced luthiers will tell you (as i would have told you a few years ago) that the harder the guitar wood and the better the guitar would be, better sustain, brightness, edge, sparcle, .. "Tone". BUT, if this was true, harder materials than wood could have been used for guitar making (i mean widely used/standarised), materials such as iron, fiberglass, or even ceramics would have done better! What most players a looking for today is not an infinitely sustainig guitar, but a guitar that "breaths" and resonates in a musical way, an infinitely hard guitar doesn't resonate at all (only the strings will dictate the sound), but a guitar that resonates too much will kill parts of the sound and enhance others, and most important, it won't resonate very long, and the sound will not fade uniformly, .. I may seem to be giving answers instead of questions, but i am first of all seeking your oppinion about these self made conclusions (wich are not absolute godly truth btw), and i am also trying to establish some kind of cathegorisation according to sound types, something like saying "hard necks and bodies with a heavy truss-rod ..etc are best for heavy metal, and softer mahogany guitars (gibsons?) are better for the blues" (just an example of course). so ... ?