Spot on...Just delt with one recently...
If that "lifetime" warranty is provided through a company called 'Premier dealer services"...better have every maintenance/repair record and be ready for a fight...and better not have anything aftermarket, or a tool box on it...absolutely terrible to deal with. Only 3rd party warranty company I've black listed in 22 years.
Crooked as can be...and they provide alot of the 'Lifetime' deals around the midwest.
I'd love to hear some reports on the 3.0l Dmax between 100-200k miles not a ton of those out there yet...we don't see many of them but have 2 friends with them and extensive repairs under warranty. Both unloaded or planning to once warranty expires. They liked the trucks, just not the extent of repairs required when both take excellent care of them and don't push their limits at all.
I've driven them, we do service work on a few lower mileage units presently.
I don't mind how they drive and the mileage is pretty impressive. I just don't trust the long-term reliability of them or that parts will be available when needed.
Almost all of the 1/2ton are getting to the point where inevitable repairs that cost near half the value of the truck at higher mileage are going to be the norm to keep them going.
Engineered obsolescence...can't sell as many new vehicles and keep those shareholders happy if they last reliably out of warranty period

.
Between that and the EPA requirements the manufacturers have to meet, the consumer is not going to fare well with vehicles anytime soon.
Pick your poison, take a sip and smile, it's only money...can't take it with you in the end. Buy whatever one you like the most. Hope for the best, plan for the worst.
I'm a bitter old cuss about cars and trucks after watching what the auto industry has become around me over the last couple decades... I hate them all, don't listen to me

Buy whatever excites you. If you only keep it till 100k-150k you'll probably be ok with any of them...or you'll just have to pay a big repair bill or two. Life goes on.