I'm a huge fan of the BFGs, I've owned at least 6-7 sets in various sizes. However, the set of 20s I had on my Tundra could never seem to balance perfectly. I ran them for 70K and then switched to the Silent Armours. This is the first set of SAs for me and can tell you they are hands down better than the BFGs in every way for on road performance. Excellent year round traction in all conditions, noticeably quieter and much smoother ride, mind you the BFGs were load range D and these are P rated.
My only initial concern with the SAs was when I tow my camper (8,500lbs) I was worried about sidewall flex. It has not been a issue at all and I didn't really expect it to be given the relatively short sidewall of the 20s.
The only negative I have is the change in fuel consumption. When I first pit the BFGs on, I had about a 15% loss in fuel mileage (they were 15 lbs each heavier than stock and one size bigger). Then, when I put on the SAs, although they were 1/2" taller and 1/2" wider than the BFGs, they were also 10 lbs lighter, I took yet another hit on fuel mileage.
At the end of the day, I think they are both a decent tire, when I sold the BFGs they still had about 50% tread left and the SA's currently have about 32K with no noticeable signs of wear.
Now for the Jeep, no question about it, BFG KOs for sure.
Vince