Chains, they do not stretch and loosen up. They do not cut or wear from rubbing on something. Just my personal preference. I used to use straps, I like the chains a lot better. I also like the axles to chain to. With the body, there is no way I can fully compress the suspension to the bump stops, so there is a possibility of hitting a big bump and have the suspension compress and come loose from the straps. I have lost straps twice while trailering. Never lost or even loosened a chain to the axles. Also, chaining the axles allows the Jeep suspension to help take some of the bumps out of the road, allowing the trailer some relief. I also use 2 chains on the rear axle, and 1 on the front. "X" cross the rears, and "V" the front.
