That's dedication as this is a looonngg thread, but thank you very much for taking the time to do so.
To answer your questions, in short no. I had the chance to buy a very nice 6.0 Ford before buying my Chevy. I talked to my friend who was a service writer at a Ford dealer and he warned me off of 6.0's and of course I did my own research into them as well. I know that there are a lot of fixes for 6.0's now compared to 2010, but you just don't hear of them ever getting mega miles out of them. At the time I was looking, I drove all three and was leaning toward the Ford/Dodge/GM in that order. None of the other two did it for us and I really didn't think I would end up in a GM. For that era of truck, the GM had the least amount of problems in my research, YMMV.
There is a lot to like about the rest of the truck (Ford), but the one big issue for me is I owned an '02 F350 and neither me or my wife really fit the truck. We had the fully adjustable seats and could never get comfortable. We put about 95k miles on the truck and no matter what we did, it didn't work. The Chevy on the other hand is like magic and is beyond comfortable for both of us (wife 5'1"/110lbs, me 5'9"/160lbs), we both really enjoy driving it. It's just nicer, quieter, and more comfortable both on and off road. These last few months where I haven't been able to drive it has been like a withdrawal.
As you has seen from my thread, my truck has done everything I have asked of it and it has never had a failure or reason to not trust it. The only reason I did the SAS is for my own reasons. I did want the extra wheel travel, but more importantly, I made the mistake of driving one that had been converted and it actually drove much better than my truck. I've SAS'd a couple of other vehicles and I really like the serviceability as well.
I have owned a lot of vehicles in my life and this is the only one that is not for sale. Every other vehicle has had a price, but it would take a lot to get this one from me.
I would agree with your list.
The advice I give everyone that asks which truck to buy is; I tell them to drive them all and buy the one that you enjoy most and makes you look into store windows as you drive by or turn at look at as you walk away. In the end, they all have problems (including the Toyota's that I've owned), but if you don't enjoy/like the vehicle, the rest doesn't matter.
Jack