anyway, the instrument that we are using aint going to break easily according to the wood. I have some geetars from the early 70s to late 70s, it it still holding up and still can wack hard to play. It aint going to break down because of the wood. The confusion over which one is harder, break easily, is also depending on how the person use the instrument, day in day out.
Even if its an instrument made out of metal and thrown around everyday, its going to break down one day as well, only matters is when.
As for the sound different, if to really look at the resonance of the string vibration in relative to the surface of the instrument, the most immediate surface that the strings vibrate across, is on the instrument surface, aka from the body top all the the way across the neck fretboard.
The mechanical vibration of the strings will be picked up by the pickup, convert into electrical energy and pass out to the output and to amp.
So where does the neck material comes into play in affecting the sound? Of course iam not doubting that theres differences, perhaps on the density of the wood. But without any proper quantitative measurement of such, what we can say here, is never an actual representation of the info that you are seeking.
Hehe, as for info elsewhere, sometime we have to take it with pinch of salt as well. The kinda wood which some are talking, are of different grade. When one encounter certain instrument with certain wood sucks, does it mean that across the many different brands of instrument, made with the same wood, suck as well or that its not a fair judgement since we dont even know the wood grade, the usage context etc.
Anyway, i do think that the notion of seeking info is always a good thing, but sometime, what we wanna know, is too general and thus unable to have a answer thats either "black or white". Theres also many other answers in forms of many colours.