The Norwegians just came out with their latest snow tire test. Here's the link to a .pdf from their October 2006 "Motor" magazine.

http://www.motor.no/pdf/M806_DEKKTEST.pdf

Here's a summary of the results:

Studless Snow Tires (points)
1. Continental ContiVikingContact 3 (8.0)
2. Nokian Hakkapeliitta RSi (8.0)
3. Gislaved Soft Frost 2 (7.8)
4. Bridgestone Blizzak Nordic WN-01 (7.6)
5. Michelin X-Ice (7.6)
6. Vredestein Nord-Trac (7.2)
7. Dunlop SP Winter Sport 3D (7.1)
8. GoodYear Ultra Grip 7 (6.8)

Studded Snow Tires
1. Michelin X-Ice North (8.9)
2. Nokian Hakkapeliitta 5 (8.9)
3. Continental Winter Viking2 (8.8)
4. Gislaved Nord Frost (8.8)
5. Bridgestone Noranza (8.4)
6. UniRoyal MS Plus Nordic (8.3)
7. Fulda Kristall Ice (8.2)
8. Pirelli Winter Carving (8.2)
9. GoodYear Ultra Grip 500 (8.1)
10. Vredestein IceTrac (7.7)
11. Nankang Snow Winter SW-5 (6.6)
12. Sunny Winter-Grip (6.1)

nice, just wish I could read it. :(

And I just got the nankang ones heh..