Mudflaps seem to get more threads started!
After two sets of Mabbet/iAG/other-identical getting busted on trails, I'm ordering RokBlokz, front and back. Front for the obvious reason, and this will be supplemented with the iAG removable 4-door-full-length step, which helps keep rock and debris from hitting the truck.
Rear, because it's the right thing to do for the motoring public behind you. They don't need stones from my Goodyear "Rock-Chuckin' Territories" hitting their windshields. Also, it just doesn't look right, to have two, only two, and not four, wheels fully "dressed."
Thanks for the insightful posts, folks--I'll get the XL Longs.