JBM, you haven't worked in the oil field, have you? Most of the lease roads are just jagged rocks. I have been lucky in not getting a flat yet, but my boss for a while there was getting them from rocks about twice a month.
Ive been ina similar situation as the OP. My dad and I were in his truck right after he bought it up scouting for Elk Hunting. We were 17 miles back in up in the Snowy Mountains, and found a place where we thought would be good to camp and build some temporary stables for the horses during the hunting trip.
Well, I hopped out of the truck and heard a hissing. Sure as hell, the passenger rear tire had a rock sticking out of it and was obviously leaking around it. Damnit. So we popped the hood to grab the stuff to change the tire then go to grab the jack. No jack. The previous owner neglected to tell my dad that his son had used it and left it on the side of the road somewhere (we got the story later because he bought the truck from a friend). We should have checked before heading out, but we'll pin the blame on someone else
So needless to say what took us 1.5 hours of driving in, literally took us 20 minutes to get out of. I felt like I was riding in Pastrana's rally car. Fortunately there was someone camping at the base of the mountain and they let us borrow the jack from their PSD. If you aren't familiar with the Snowy Mountains, the 17miles back in wasn't the problem - it was the fact that the closest town was over an hour away once we hit pavement and to top it off it was a Sunday and no tire shops would be open. Thank god we ran into the campers (who were scounting on quads) as they were leaving their camp, so we could borrow their jack. That would have been a LONG Sunday otherwise.
And to answer the OP's question, I haven't heard either way about the new BFG's. I have Toyo M/T's on my Yukon and love them, even though they're due to be replaced. I don't know if I am going to go with as aggressive of a tire on my PSD, but I am going to go with some sort of Multi-Terrain tire... I'll need a new set by spring anyways. (I put 5,000+ miles on my truck per month).