Spruce with black spruce being the king of the softwoods because it grows in very adverse conditions , it is dense as far as softwood goes , not uncommon for me to cut one that's 100+year old and only 4" to 6" diameter . It dries in a summer , burns hot and low ash but like softwood , no long time burn .
I find that white pine needs a year to dry for a proper burn in my furnace but I'm burning bigger splits , it just burns different than spruce in my furnace .
Popple , I've only burn't 2 trees worth so far , 2 dead standing that my neighbor had that I cut one winter after being snowed out of the woods for 2 weeks and needed a chainsaw fix , I burnt them in 2 days , I found that popple was better than snowballs or the wife's kitchen table .
I'll polly get the bigger popple milled up and my friend will grab what he can including the fir for kindling so it won't go to waste , he also likes Zoggerwood because he doesn't have to split it .
Neil , 261 or the 7900 .
Nice furniture Joe , I may just get that popple milled into 2" stock for some rustic furniture .
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That's my 7910 bottom right with a 32 I borrowed off a 395. Handled it no problem burried in the big log in the back ground. With an 18 or 20 and an 8 pin rim I think it would be a noodling monster. One saw to handle anything the 180 won't.
After my daughters soccer practice I had a few minutes to spend outside so I took my little scrounged homelite to some Manitoba maple I had in 4’ lengths. 
The plan was to have a little fun and then fire up the poulan 5020 and just get er done as some of the pieces were 12” or better. But I was having so much fun with the diminutive 30cc homie. 
It throws real chips just like it’s big brothers. Lol. Anyways before I knew it, it was all cut up and the poulan got no love. 
It was such a nice cool evening, I couldn’t make myself come inside before dark.
