Strength is not an issue. When's the last time you saw a race car or desert race truck that was using TRE's? They don't, they all use rod ends. Rod ends are much easier to use for fabricating, just pay the money and get good ones and they will last a long time. They might not last as long as TRE's, especially depending on the climate you live in, but they are easy to check for wear and are safe even when worn. Personally, I've seen many more TRE's fail on trail rigs than rod ends, mostly due to the TRE's wearing from too much movement and not being checked for wear often enough.
Really, it's personal preference. Both will work well. I use rod ends on the XJ. I tried using TRE's on the buggy, but gave up and went to rod ends because of how I had to do the steering.