Rosewood:
Rosewood wands are rare because these wands tend to be very picky. A Rosewood wand tends to choose one who has a deep inner peace or spirituality, which considering it excels at Love charms is probably a good thing. Rosewood wands are also good for healing magic as well.
Gryffon Feather:
The gryffon originated in Greece, having the head and front legs of an eagle, but the hind quarters of a lion. Gryffon feathers are used in wands of wizards or witches who posses great strength whether physically, magically or emotionally. These wands are especially good for both offensive and defensive magic.