Whenever I shop for tires, it always comes down to price and reviews. I had 245/35 Nexen tires as the first set on my SRTDs (Brian had them on when I bought the set from him 10 years ago) and they did not age well, consequently I steer people away from them at every opportunity. Replaced with 245/40 Hankook Ventus V12 K110's (I believe those have been replaced in the catalogue with K210s now?) and they were good tires until I hit a pothole that put a softball bubble into one. They were too worn to replace one so I replaced them all with Continental ExtremeContact 345/40 and found my supposed alignment issue dissappeared. The Hankooks "looked" evenly worn, so I'm not sure if there was some internal failure. I wasn't kind to them. I would say Hankooks are nice at first, but don't age well (set on my Charger wore quicker than I expected.
I put Toyo's on the Charger that were extremely nice, but only had them a few months before I traded the car in.
I had Dunlop summer tires on my Grand Prix. I never noticed it, but some folks I cruised to shows with in the NJ Club Grand Prix group told it sounded like a 4x4 on the outside. Sold the wheels they were on when the belts separated and they were shot after a few seasons.
So my experience is the bigger brands are worth the money, but I still follow the reviews and it all depends on who offers my odd tire sizes (245/40/20 Extreme Summer for Luna, 285/75/17 All-Terrain for Big Blue). I don't have specific experience with Lexani so I can't comment. For my next set of tires on the Jeep, Milestar and General are on the list depending on what they offer for All-Terrain. I dropped Milestar this time around because their Patagonia A/T was just a highway tire more than anything... but I digress.
All my other experiences are with All-Terrains on the Jeep (Duratrac, KO2).