Here's the problem as I see it:
Tires are a compromise. There is a 3 way triangle technology between traction, wear, and fuel economy. If you compare tires, you have to be aware of what you are trying to compare. Tires with great wear characteristics, don't have great traction, and great fuel economy - and I'll let you fill in the rest of that.
Handling and ride are opposing characteristics.
So taking HTSS_TR above, he is comparing a 420 AA A tire to a 520 A A tire - and saying there is a difference in wet and dry traction. Of course, there is. The traction and the wear ratings say that.
I'll bet CR is doing the same thing.
I find it interesting that they did NOT rate Bridgestone. Is it because they could not decide where to rank them? Or is it because they are based in New England, where [censored] is not as well marketed as in the western US?
Then they lumped 4 others together. They included Nokian, which is pretty much a niche player, but popular in NE because of its winter tires. They completely ignored the sub brands - Firestone, Dunlop, Goodrich, General, etc. - some of which have larger sales volumes than Nokian.
Personally, I think I detect a New England bias. European makers do well. Asian, not so much.