Tires: Load E range tires, michelin ltx m s, dodge ram 2500

Question
My Dodge Ram 2500 came with Michelin LTX M/S, Load E range tires and I have stuck with them all along.  I have also been told they have tougher side walls.  I pull a fairly heavy 5th wheel and would like the best.  I am also looking at Uniroyal Laredo HD/H with Nailguard & Dunlop Radial Rover AT.  Any suggestions?

Answer
if your looking for the absolute toughest tire you can buy get the giant R23 or R34 depending on the tread design you want this is an all steel cased tire no polyester what so ever.  Where I work we used to sell them exclusivly to loggers, U.S. forrest service, Union pacific railroad, and Emergency vehicles.  Because of reliability.  I've seen a few nails puncture but never a rock or stick like I have in other tire mentioned above.  I'v actually seen nails go in hit the steel casing bend and come back out looking like a fence staple

if you can't find the giant  i'd reccomend the Toyo m-55, or m-54 depending on dread design desired