My experience with this is from personal experiences, friends experiences, and friends who are/were mechanics. The one truck mentioned I will admit I have no direct experience with is the newest Tundra's. I will say the last generations (especially the first) were toys compared to the Detroit trucks, period. Great for the weekend warrior, but not stout enough to handle big jobs.
Chevy, Ford, and Dodge do not export their trucks on any kind of major scale to most other nations, probably for a plethora of reasons.
Also, fleet trucks are bought not on sticker price or brand loyalty alone, but on value (read: initial price, reliability, usefullness, and resale). That is why you will see nearly all fleet trucks Chevy's or Fords. Perhaps part of this is they offer more than just the standard 1/2 ton rigs.
Anyway, like I said they all have + and -'s compared to each other. The only one I would personally stay away from is the Dodge.