I put a set of the A/T3's, 275/65/18 C's on our '10-1500 to get rid of the P rated tires.
Was very happy for 11k miles until we stepped up to our current '13-2500HD! Will probably put a set on the new beast.
Did well wet and dry roads. They did well in the winter also. Heading north on a snowmobile trip they held the road very well in some black ice while my buddy with his 'Burb pulling a 4 place enclosed trailer ( we had a cab high topper, and a 10' 2 place clamshell trailer ) was caught by surprise ( and we were not flying by any means! ) with a set of BFg Long Trail ( I think they are).
A bonus of the A/T3's is they have a 55k mile warranty, including the LT's!