The Husqvarna XP saws are in a whole different league than most saws. I've had my 550XP (50cc saw) for about 5 years now and it's been a perfect saw for my firewood needs. I modified the muffler, so it has a little more power than normal. I run a 20" bar with a .325, .050 chain and it pulls really well when buried in a log. I wouldn't normally run a .325 chain, but it seems to be well matched to the 50cc saw. It's a very well thought out saw, with flip up caps, fuel level window, felling sight indicator, retained nuts, easy open top cover, good bucking dogs etc.
A step up to a 562XP would probably suit anyone's needs. When I used to do forestry work in the 80's, all our saws were Husky 266XP's and they were beasts, running 20" bars. 60cc saws are a real sweet spot for power to weight.
The only issue with the Husky brand, is you don't have a prevalence of servicing dealers like Stihl does. It seems like Stihls are sold everywhere, at every tractor dealership, ag supply store etc. But I haven't had good luck with any of the newer Stihl products. They seem to be extremely finicky to start and stay in tune. I do have a 25 yo old Stihl 011 that starts on 3 pulls, even when it sits for years. It has some incredible compression for a little saw. Great for cutting mesquite.
Husky kind of sold out to the big box stores. You see the Husky homeowner/Rancher saws being sold at Tractor supply, Lowes etc, but those saws are not at the same level as the XP line. If you follow any arborist or logger forums, Husky XP's are one of the industry favorites. The good news is I've never needed to have my XP saw serviced.