OK, "beyond reproach" may have been to strong, but I would say that there data is far less likely to be biased than TireRacks, whose sole purpose is to sell tires.
I don't have the energy to scan The CR test, and it is not freely available on-line. Feel free to go look it up at the library, or better yet, subscribe yourself...
Oh, and I won't tell you which car batteries they liked either...
Studs are an option, but from what I have read, they only have value on ice, and can actually harm performance in wet/dry as well as being noisy.
Oh, and my extrapolations and interpretations of the data are far more supect than either the sources I used.