Rangerdude I have run just about every sort of tire both on and offroad. Long ago I came to the conclusion that AT's were designed to sell to the public but did little if anything more than a standard hiway tire.
In the rain I have found the Michlin M+S hiway tire to be the best by far. It will also get you as far offroad as most if not all so called "all terrain" tires.
Then you get to the heavy duty "mud" tires... These will take you where you need to go offroad.
I think the A/T was invented to satisfy the desire for guys to have a tire that LOOKED rugged but did not make a lot of hiway noise.
If I needed to drive in the rain much it would be the Michlin M+S for sure on my vehicle.
Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />