For wood slats, preferred wood is pine, presumably for using as arrow shafts. There aren't many (if any other) recipes in vanilla to utilize the slats, but I feel it'd be better suited to prefer pine slats for arrow shafts and not give quality hit for slats cut from other types of wood. e.g. custom crafting recipe for wooden canteen, I'd rather use birch slats for a canteen than resinous pine slats.
Unless there's something else, that I'm not thinking about. Riving pine is easier than birch for sure IRL, but the difference in my experience is time taken, not the (quality of the) produced slats.