Yes Husqvarna has two different lines. The low end are nothing but nothing but Poulan chainsaws in Husqvarna colors. Both both Poulan and Husqvarna low end (Consumer grade) are good saws when use as intended. I currently servicing a 390xp and a 570 Husqvarna saws which are the commercial versions. The weight of the 570 is a little much for me now if I was planning cutting firewood all day. Still a little lighter weight wise than the Homelite C-52 that I have used.
Here the original McCulloch has gone out of business. The two McCulloch saws I had did last 20 yrs though I had to repair them several times. With McCulloch being it came down robbing the worst of the two to keep one working due to lack of part availability.
A lot of the Craftsman chainsaws for years was were Poulans in Craftsman dress. Now Craftsman is using MTD chainsaws.
Of the chainsaws I repair here the Echo line seems to be the gutless wonder. Simply no torque when needed.
Here the most popular chainsaw brands are Stihl, Husqvarna, and Poulan.