I still prefer cedar when I can get good shafts, but I also like Douglas Fir. All of the popular arrow woods make good arrows, otherwise, they would not gain popularity. Personal preference is usually the deciding factor. Checking out the sponsors should get you hooked up with some very competent arrow smiths.
Some don't like the fact that wood arrow shafts vary in spine, such as 50-55#, or vary several grains in mass weight. With a closely matched set, none of us are good enough that that these small variations would make a difference in our shooting. However, some guys are really concerned about this, which is fine. If tighter tolerances spur one's confidence, then it is worth it to be very selective.
All I can say is that wood is my choice hands down. Yes, it is simply my notion of tradition. Others don't agree with me, which is why they make arrows out of numerous materials. In fact, I used to be an aluminum shooter. Whatever arrow material you choose, you can find arrows that will shoot tighter than any of us can hold.