I have had both Goodyear and Carlisle on my trailers. Proper tire maintenance on all 18, as I hate nothing more than popping a tire on a trailer while going somewhere. I had nothing but constant probs with both.
I now have 18 Gladiators on the ground as we speak, and I have not had a single problem with them for years. Properly maintained just like the others.
They are a bit less expensive than some others, and their claim of less roll resistance appears to be true on my trailers.
But just remember, buy a tire that you are comfortable with and fits your budget. Just because I had bad luck with some brands, doesn't mean that you will have the same luck.