I run winter tires so I wasnt too concerned about severe winter weather.. they will handle a snowflake during the transition months just fine.I have had both on my Silverado, the Conti Terra Contact AT is great at everything but in the snow which Tire Rack also noted in their testing, the Defender LTX was much better all around.
That same tirerack test showed them head and shoulders above the other 3 tires for all dry and wet categories.. which was my main focus