For years I heated with wood, often exclusively heating with wood. I have mixed emotions about that experience.
On the positive side: It is extremely reliable and the quality of the heat is excellent. The cost is relatively low (assuming you don't look at the cost of a truck, splitter, chain saw and
your own time ) I never worried about the electricity failing or extreme cold costing more money to heat the house. I split a lot of wood with wedges, axes and mauls before I could afford a hydraulic splitter. Some people say that the two happiest days of owning a boat are the day you buy it and the day you sell it. I think the same standard applies to a hydraulic log splitter !
On the negative side: It is time consuming. And those demands on time go beyond cutting, splitting, hauling, stacking and hauling again. There's tending the fire, cleaning out ash, cleaning the house and the fact that you are tied to that stove during the winter. If you can't get home to tend the stove, you better have someone else that can. I didn't mind the labor but I did mind the time.
Not to brag, but I am very skilled at operating a wood stove (probably because my father was NOT good at it and someone had to to do it). I can run a clean burn with a blue flame over a bed of coals with no smoke coming out of a warm chimney. Or I can bank a stove to run during the longest of winter nights. I have fond memories of heating with wood.
There may come a time when I return to supplementing my heating needs with firewood but I don't think I'll ever return to heating exclusively with firewood.
As for the type of wood used, it was predominantly oak. Occasionally locust & walnut.
Once, when I was a kid, my father purchased a couple of trailer loads of oak boards from a defunct cabinet shop. It was kiln dried, 1" thick oak boards! None of the boards were longer than about 16" and they were all 4" wide. It was a shame to burn such beautiful boards but it was cheap and we were poor. That stuff burned like coal !!