Hedge on both accounts. It has thorns, it is heavy,it is crooked, has thorns, won't fall down when cut, stumble on apples, has thorns. Burns like Promethean indigestion, Splits well,free, it's all I got.
I have fewer choices than you Southern boys. For hardwoods there's mostly Birch, Ash, Elm, Aspen, and Poplar in order of BTU.
Birch is nice to burn if well seasoned but the bark is a PITA, I don't care for the smell, and hate the slivers I get from handling it.
Ash is a dream to split, smells nice, burns well, and no slivers.
Elm is a groan to split, lousy to stack, often stinks, but still burns better than Aspen/Poplar.
Aspen and Poplar stinks terrible if less than ideally seasoned, makes too much fine ashes, and has fewer BTUs. It doesn't smell very good in storage either and if they are diseased, can downright stink up the entire house.
I love birch, ash, and cherry. Very dry wood which you can burn with not too much seasoning time. Elm however can season for years and still hiss when you throw it in the stove. Sadly, I've never had good experience with it.
Favorite wood when I'm looking for some real heat: Ash (because I have access to lots of it and I like the seasoning property -- next year or the year after however I'll be trying some red oak for the first time . . . another favorite of mine is sugar maple (for good heat) . . . cherry (I liked the color, smell and seasoning properties) . . . and apple (for the smell and BTUs)
Favorite wood for visual appeal: Cedar (because it catches quickly and pops and snaps . . . and smells good to boot -- wonderful for kindling) . . . although pine and spruce are fun to toss in the fire when I'm looking for more "action" than long lasting heat.
Least favorite wood: Unseasoned wood . . . but if I had to pick a species it would probably be poplar . . . I'll burn it and believe that any wood is good wood . . . but it seems that this wood burns quickly, leaves few coals and when I cut it down it often has rot and/or ants. A good wood however for burning in the shoulder season or for getting the fire up and running.
Osage Orange. Some call it hedge, iron wood, etc. But those names are thrown around for alot of different woods. Osage is the tree that has male/female and the female drops the big monkey brain apples (commonly referred to as Hedge apples). The wood could ruin a ball peen hammer.