The ESP Guitar Company

i agree for the most part... although i believe there are still a few factors to be considered, like: wattage/output (decible level), speaker and control flow (eq mix), pickup(s), etc.

-AF

@Aurora Flowers

This was a question asking what wood gives the best sound. I don't think wood on a solid body contributes to the sound that will come from it if its plugged in. There are many factors that actually do contribute to it and you mentioned some of them I do believe will contribute to its sound.

@@J
 But wood typically does not make sound on it's own, not even in the form of solid body guitar that is or is not plugged in.

and to answer this question... i'm not sure any single wood is a better or 'best' for 'sound' than any other, i mean when it comes down to it, a guitars fretboard and frets are definitely a contributing factor, as well as neck, binding material, top, back, sides and of course shape.
Now if this question asked "When played; which single or collection of wood(s) most define a guitars sound?". In either case the answer will be an opinion. Not all guitars are made the same. Two differently made guitars of a like/shared or common wood may have different sounds so long as they differ in shape, size and style to which they are made. 
However we might like to choose wood(s) that are versatile enough to accomplish a good overall sound for a variety of shapes, sizes and styles. In my opinion, it's Maple.