QUOTE (daztd @ Sep 5 2009, 09:58 PM)

I have a 2006 MazdaSpeed 6 and I will need to replace my 225/40/18 Pirelli Winter 240 SnowSport Performance Winter tires with new ones. I've used these tires for 3 winter. I never did like the traction of these tires in the snow. I want something better now for snow. I live in Chicago and the last 2 winters have been very bad. The 2 tires I am looking at are the Blizzak LM-60 is Bridgestone's Performance Winter / Snow (these are brand new for 2009) and the Dunlop SP Winter Sport M3. Money isn't an issue, but I do want a tire that is great in snow and isn't very loud while driving. How's the wearing of these tires too? Any advice would be great. Thanks!

Between the two, take the Dunlops!
I've run on at least three different type of Blizzaks previously, and they've all had excellent winter traction for the first 40% of the tread depth, then it changes to a different type of compound, with a HUGE drop in winter traction, as bad as some half-worn all-seasons IMO. I've heard of others experiencing the same thing.
In comparison, I installed the Dunlop M3s on my winter rims on my 6 before last winter, and they gave me excellent traction and control through a ton of different conditions. Through 6" deep snow in parking lots, slushy intersections, and coated highways, I was able to maintain complete control while getting around SUVs and other traffic. They're slightly noisier than my summer tires, but it's nothing that's offensive, and IMO quieter than other winter tires. After 8K miles, they were removed for the summer, and the tread depth was very good (maybe 2/32" down), enough for at least 2-3 more seasons for me. I fully expect them to maintain their traction through at least 75-80% of tread depth, MUCH longer than the Blizzaks, and similar to the Dunlop Graspics that my Altima rides on.
Nokians are also a good alternative, but the prices are definitely higher, and IMO their performance isn't worth the extra $$$$...