I made this one recently with a walnut neck and I love it. Mated with the lightweight mahogany body and wenge fb, it really sings. The walnut was nice to work with as well. I've heard or read people say walnut was just like maple and just like mahogany which is contradictory, so I guess it depends on the board as someone mentioned before.
I highly recommend it for building. In fact, I've got some big slabs I'm going to use for bodies soon, and still some for necks too.