I happen to be one of those guys that thinks pork cries out for hickory. LOL But it's also easy to use too much hickory. The majority of my smokes are with 2 chunks of hickory, 2 chunks of apple and 1 chunk of cherry. Cherry gives a great color to
the meat, but it can make it dark if too much is used. A wood that is a little lighter than hickory which I also like is pecan.