The veneer comapny that I get my firewood from occassionaly has some exotic wood, some of which I have not identified yet although 90% is red oak with walnut being the second most common. The black walnut I burned today has a scent that is very appealing when burned. i cracked the door to let some of the scent spill into the room and I just can't get enough of it. Western redcedar on the other hand smells much better when green and freshly cut rather than burned, at least to me. Cherry also seams to smell better when green rather than when burnt. Any others out there that are close to walnut in appeal?