Hope you're right Jim. Sure could make a case for it given how many are still going, even if it is on their 5th-10th overhaul.
My votes in order. Maybe this isn't "best", but favorite.
P-pump 5.9 Cummins. Or ve pump for that matter.
Common rail 5.9 Cummins just to group them together. The current 6.7s smoke them for power, but the simplicity and fuel efficiency are gone
20/22r/re Toyota.
3.4 v6 Toyota (5vzfe?)
Ford 300 straight 6.
Ford (international) 7.3 idi. A good engine, that put out enough power, at the time. As long as you didn't have to ever start it in the cold. Honestly, I just love the sound of them.
