First off, Welcome!
Second, just one answer for me;
Cooper Discovery ATP's in the stock 275/60-20 size.
On my second set for the '07 1500 5.7 QC 4x4 after wearing out the stock Goodyears.
They are affordable, durable, and have handled everything from high temp high speed high load freeway towing to Sand Dunes to mud, snow and rocky river stream exploration out here in the great Southwest.
They wear evenly and are quiet and very puncture resistant.
I was skeptical at first for going with somewhat of a "second tier" brand name, as I really use my stuff and try to stick with top proven brands.
I have to admit, I have had no regrets and only praise for these things. If they keep making them, for the same price, I'll go back and get them a third time around when it comes due. But, with combined stop and go surface street and a bit of everything else, we are getting up around 42k a pair with 10k rotations and moderate air pressures.
That is my 2.5 Cents worth...