I prefer the natural side of the coin.
Wood, Bone, Fossilized wood / bone / ivory / tooth. Stag is my least preferred of the natural materials. So much more character, and dimensions to those materials. Wood in particular when it is spalted, dyed, or burl; beautiful grains & colors. Only thing I might go for instead of those would be something like a stabilized pinecone which can be quite interesting.
Yes I have some G10, Micarta, and CF fixed blades, but very few. The "art that is the knife" always seems to be missing in those examples.