I just installed Goodyear Wrangler GSAs in the stock size. With only 27,000 miles, the stock Ameritrac TRs were wearing horribly, and neither tow nor haul. They did OK in the snow.
I was trying to find 265 Nitto Terras in the "E" rating, which some of our members have installed, but the tire shops around here seem to be incapble of getting the more exotic brands, so I finally just went with the Goodyears. So far, they ride firmer, with less "squirm" than the Ameritracs. No snow yet, so I don't know how they'll do.
I know JMora above had trouble with his GSAs, but my Ameritracs were junk, so what can you do?