Everyone has their own criteria of what makes a "good" neck...first would be comfort..I like fat necks like 50's LP shape..or Fender "D" shape..I can't stand the 60's profile Gibson necks..not enough "meat"..but others feel the opposite...Wood plays a role, but to say a Squire neck is not as good as a fender is a mistaken assumtion..Sqire necks are quarter sawn maple just like a fender USA, the FINISH isn;t as nice, but if you take the time to clean up/dress the frets and put on a bone nut, maybe refinish if you like raw necks..it's the same...I don't like maple fretboards...they feel too "hard" to me and "hot"...others love 'em..it's all a matter of personal taste..IMHO..Most necks are Maple or mahogany..so they are basically the same..it's just shape and finish/frets that make them different.
hmmm i honestly have to say i dont really know tyhe answer to me the nmeck is all about how well the guitar plays and how it feels for me to be playing it. there are certain guitars i have played and the neck is like playing a broken bit of wood bc rich for example but i have noticed that when i play an american strat it is alot more comfortasble and easier to play but when i play with a stadard its the same but feels alot diffrent to me i will always like maple necks better than rosewood but thats only because i like the feel of them
adjusting the fretboard rod does actually really affecty ur playing which i have noticed so i cant really tell u a good enough answer without adjusting the rod on my rosewood strat neck
Aside from what makes a neck "feel" good; size, shape, finish, which are all somewhat subjective. What makes a "good" neck is wood quality,and craftsmanship. Wood grain is really important to a neck,grain patterns that run the length of the neck is super important to good tonal transfer.Long straight grain, not curves, grain that runs sideways. Of course wood quality is the other factor in that.
This is why I've had squire necks that were better, or as good, as their Fender counterparts.
Something that shouldn't be overlooked her is how the neckfits in the pocket. A good fit also helps insure good tonal transfer.