Reliability is definitely important. However, my desire and view point on this topic is rooted in critical operational monitoring. As I said, I tow heavy and I while I don't abuse my trucks, I work them hard especially when we tow through the mountains and in the Texas heat. Knowing exact values of temperature and other sensors allow operators who pay close attention to spot small problems before they become big problems.
My main reason for ditching Ford is a reliability issue...
Note: I don't want to turn this into a Ford Bashing thread but I will share my story....
My 2011 Super Duty was one of the very first trucks to have the CP4 High Pressure Fuel pump failure. Once replaced that truck ran like a rock until I traded it in 2017 for my 2017 (current) Super Duty. I just assumed I had a fluke. Well my 2017 had a CP4 failure 3 weeks ago. Sigh!!! OMG and it has been a nightmare. Ford tried hard to deny the extended warranty claim but my truck is well maintained (never ran it out of fuel, never had def or water in the fuel tank, always changed filters on schedule, etc..). They finally approved after pictures proved to them there was no rust in the high pressure fuel system. Now we are in parts limbo. The parts all backordered with no availability date supplied.... It could be months. Summer and fall travel has been canceled so this has impacted myself and my family. If you do your research on the Bosch CP4, it is inherently a bad design. Ford, GM, Dodge/Cummings have all used it. GM finally went totally away from Bosh in 2017. (Great decision IMO) Cummings used it for two years and then ditched it. Ford - in its infinite wisdom - has used it from 2011 and continues to do so. It is the achilles heel of the 6.7 PowerStroke. Many people put 100's of thousands of miles on Super Duty's and never experience but I have had it hit me twice now. Hence my desire to learn and figure out my transition to GM. I can't bring myself to purchase a Dodge / RAM especially with the latest JD Power Initial Quality results which puts Dodge/RAM at the VERY bottom of the list. (Cummings engine is fine - it is the rest of the truck and systems that are the problem).