Wood burning stoves, firewood (best to worst)

Its winter in North America and nothing gets you warm all the way through like wood heat. Yes, its kinda messy but I like the smell and the look and the feel. I have an interior wood stove, made by Earth, and its very efficient. A friend of mine has an exterior wood system that they seem rather happy with. I would enjoy seeing some discussion from you all about interior vs exterior and your experiences.

To the inexperienced fire builder any old wood will do, but we know this is not only a false statement but potentially dangerous. My favorite wood to burn is oak and hickory, a nice dry elm is good too.  It has been my experience that walnut burns fast and makes lots of ash. Hedge is dangerous in interior wood stoves and fireplaces because it burns too hot. My exterior stove friends tell me they can get away with burning hedge in their stove, just not super big pieces of it. Some of the stickier woods, those known for really gooey sap are often bad choices because they cause creosote to build up in the chimney. Also the greener (less dry/seasoned) the wood is the more potential for creosote. Ones to particularly stay away from are pine, sweet gum and green cedar. Other things to watch out for are burning toxic plants with your kindling. Oleander is poisonous when burned, the smoke from poison ivy can give those that are sensitive to it a bad outbreak and they won't even know where they got it.  This is not a comprehensive list and I encourage readers to share what you know. In fact I have a question, has anyone had experience with hackberry?  How did it burn? Did it make a lot of ash or creosote? Please feel free to report on any other types of wood you have had experience with.
Thanks for stopping in!