I have had experience with the three tires you listed. For the Toyo ST, my sister had them on her truck, they lasted less than 30k miles if I remember right, they wore out extremely fast and were kept on a aligned Tahoe that was always properly inflated. I had Toyo Proxes ST2 on my Avalanche, had them since the first month of owning the truck, I replaced them a month or two ago after hitting 18k miles. The fronts were severely worn, down to the wire, but that is due to driving around for a couple weeks a slight negative camber on the truck. For both the Tahoe and the Avy, the rear sets were always fine, both trucks had tires rotated every thousand miles. Both tires were 305 wide on 22" wheels. Toyos, atleast the ones I have dealed with don't last that long. Both trucks currently have Nexen Rodian HP tires, so far both sets have done good and were almost half the cost of the Toyos, and they ride pretty smooth on the Avy. My sis has had them on her truck for give or take 2 years, we both have to drive around 50-70 miles to get to school so they last pretty good, though her truck does not ride that smooth, being a lowered 4x4 afterall. I am probably going to get the ST2 after the Nexens wear out, only because I have two of them sitting in the shop with a good amount of thread left.
I have the Alenzas Dueler H/L on my Silverado, since it's a different suspension setup than the Tahoes and whatnot, can't really give input on ride quality, it's decent I guess, they still have alot of life left with maybe 10k miles on them. I like this tire, but the silverado breaks loose on them far too easily, somehow I am able to fishtail driving through a tiny puddle with them, but can easily drive in country trails and riverside beds with a fair amount of grip.
