In my limited experience with wood, hickory, oaks, cherry, walnut, pecan, etc. need to be aged longer than apple, any citrus, peach, pear, etc.
Hmmm? with the exception of cherry, it looks like my list is divided into nuts and fruits?
Unseasoned smaller branches work OK with just about any wood. Again' this has been my observation, and no research has been done, and all of the notes I took were written down on the wood right before it went into the fire.