A tire maker like Cooper/others may have several lines of LT tires to choose from. One line can be better than another for your size truck.....load carrying requirements......traction needs and long term service.
Which Cooper LT tire line are you interested in ??
I've used Cooper LT and P tires over the years and always had good results. The last Cooper LT E I used the SRM II which were discontinued and replaced with the Discoverer HT 3. Cooper recommends them for commercial service.