I personally like applewood for my pork. I have also used Jack Daniel's oak barrel chips. Some people seem to like Hickory as well. I have only one butt smoke under my belt, but I can say that you should be prepared to be patient. Mine was just over 12lbs and took just over 11hours to reach 196 degrees. Pulled it off, foiled and popped it into a cooler for a few hours before pulling. Hope yours goes well and enjoy.