I've had the old BFG-based Nordic IceTracs on my Suzuki wagon for three winters and they look to be good for a fourth. Performance has been just fine, in my experience, and according to some head-to-head testing I read at the time of purchase. IceTracs -- not WinterTracs -- were based on BFG Winter Slalom, IIRC.
No, IceTracs were a tire based on something from the Michelin group, but it wasn't the BFG Winter Slalom. I have had 2 sets of the IceTracs, and they are good for the price, but not offered any more. I believe they were based on the European Kleber Kris Alp (1). That was already obsolete in Europe when I bought the first set of IceTracs (they were already on to Kris Alp 3).
The Winter Slalom was also sold as the Winter Trac at Canadian Tire. My dad had these on his van. Good for deep snow. Useless on ice.
I did not even know BFG finally got a new winter tire this year. Hopefully miles better than the garbage original Winter Slalom. The other garbage Michelin group winter tire was the Uniroyal TIger Paw Ice & Snow, unless that is also a new version this winter.
CT switched from Michelin to Goodyear for their winter tires a few years ago. The Goodyear Nordic were based on a product they sell in Europe, which was I believe UltraGrip 800. A decent tire from what I've heard.
Most decent house brand winter tires will likely be based on another product, often from a different market and not otherwise available here.
As for those Kingstars by Hankook. Though Hankook may be a Korean company with a good name on their tires, they have Kingstar as their el-cheapo bottom of the barrel brand, and make these junkers in China. I wouldn't touch these with a ten foot pole.