Bingo, it’s made out that they’re all junk, but they’re not.
However given 2 comparable trucks, would you like the 0.3% probability of lifting a head or a 30% probability.
The other stuff was/is more easily remedied, but even if one has a “good” one, they are also more needy about maint than their other 2 competitors.
They’re like the 6.5GM of the next generation of diesels.
That said, if A person needed a big bad diesel and had a seriously limited budget and great mechanic skills, the 6.0 is the truck that fits the bill. Solid/arguably best chassis. Very good 5speed auto. Ability to make great power. Caveat being have to be prepared for a needy truck.
If I had under $20k to spend on an azz kicking diesel right now today, I’d try to find a 6.0 with low miles for the same $ as all the ragged out high mile Dmax and Cummins running around and set aside a few grand to bulletproof it.