There are a lot of varying opinions. If you're planning on doing overlanding mods, you're likely to find that any trim level will suit your needs. There are definitely some clowns who think that the offroad is the only trim level that can handle being off the country club blvd, and that the sport is the equivalent of a PT cruiser. You'll find in your research that this isn't the case, and that any TRD trim level is going to be fully capable of handling what you throw at it, especially if you're modifying your truck to overland (lift, tires, sliders etc). Moral of the story: you probably can't go wrong. Pick what you like.