I've heard that the best knitted (crocheted?) TV watching blankets come from Afghanistan.
Might have to contradict you there as well. A subset of North American women usually called Mom or Grandma make afghans for the generations. Because they are made from anything but natural wool, they will outlast nuclear war and may be the basis of the post-war economy.
Most seem to be in a zigzag pattern, thought to be easy and fast.
I have a small blue one I made in college, and, and a huge olive one my mother made. It covers me chin-to-toe, and I’m 5’8”.
I guess it depends on what you mean by “best,” but in the super-cold days we’ve had in the past few years, those things are lifesavers.