My wand is a 6" pine wood wand with an eagle feather core. The handle is wrapped in strips of green and gray leather to represent my House, namely, Slytherin. I use my wand mostly for healing purposes, so pine is actually an excellent choice. One of the wood's main properties is to assist the wielder in the healing arts, as well as lend ancient magical knowledge. On the practical side, it is also a fairly sturdy wood, so that is a definite plus as well.
The eagle feather core also aids in healing and the length is congruent with home, service, and family, all of which are very important to me. Besides, I am a fairly short person, so having a shorter wand really does suit me quite well. Additionally, I am very much a city-witch and don't want to risk poking someone's eye out with a longer wand.