The original LE was a great tire that looked like a standard blocky tread or even almost a mild AT. They wore well, tractioned well and were a solid value.
The LE2 was a sturdy highway tire, we had 2 sets. The balanced and handled very well. They were average in the rain new and were done in the rain at only half their tread wear. I towed with these on my truck and they carried the extra work with no drama. Aside from wet traction they were quality tires.
the LE3 is basically and LE2 with rain traction enhancements. It’s like they actually listened to their customers? If you are looking for a value tire and the LE3 is at the lowest price point offered, it’s probably a solid deal. IME purchasing mid-to-upper tier firestones, they have good value and are sturdy and well made. At worst, you’ll see some rain degradation halfway through, but I’d also expect it to hold longer than the LE2.