Woodely asked "Anyone used maple or hickory?"
I have used maple. It is very hard, very strong and very heavy:- about 22 grains per inch for a 3/8-inch shaft.
If you want a heavy, nearly indestructible arrow it should be your first choice. If you want a lightweight, high-velocity arrow it should be your last choice. It needs heating to straighten it (I use a gas flame), but once straightened it will stay that way.