What is the best of the best truck in mack and other road trucks?

I'll take it from the angle of economics. It generally doesn't matter the type truck. There's such thing called Monopolistic Competition. Each company is to convince you that they are the 'best" BUT when they all do the SAME thing, what makes them different? In a truck's case the only thing is the "NAME" and "Service" but they all offer service. They each make a claim of greatness and all deliver service. That's why it's hard to decide. Certain components count more. 1) The driver's chair should be airbagged and I would have wished for less vibration in my chair from the road. 2) Engines, critical mins/Detriots are the most common. They are ciritcal because out on the road IF you break down, you have a greater chance of getting someone to fix it faster, then say a Cat engine. 3) Size of sleeper is actually important. Standing up to get dressed versus rolling around like a worm in a Cab-over. Frieghtliners are common, parts are cheaper because more are available as more drivers are driving them. Any truck that you change the oil on, do regular maint, keep good tread and keep clean (helps you see if a problem is developing from a leaky transmission etc) will last over a million miles. Excessive idling, excessive jamming through gears, excessive speeds will cause the truck to fail sooner then later. The one engine I would agree with the 1st person who wrote you thoughts, Benz Engines SUCK. Our company had too many problems with them. Air bags for both the cab and axles are a good start for 'comfort'.