No comment here yet on one of the key issues involved in choosing a suitable neck width for your guitar - where do you prefer to put your left thumb?

Classical guitar students are taught to keep the ball of the thumb behind the neck, so that their fingers come down more or less vertically on the strings. This grip goes naturally with the classical barre chords.

In contrast, many folkies and jazzers prefer a grip which keeps their palms up against the back of the neck. This makes the thumb available for fretting the 6th (low E) string. (And in the case of Merle Travis and his followers, the 5th string as well.)

If you play with the classical hand position, a wide fingerboard is no handicap. (And it makes intricate counterpoint lines easier to keep separated.) But if you like to hook your thumb over the 6th to play an F chord, then a classical width neck will feel uncomfortable (unless you have very large hands).

Wassail!