On my Trotlines, Juglines, and Throwlines, I use either 3/0 Brass Barrel Swivels (not sure of rating) or Crane 4/0 SS swivels (rating is 175 pounds). This past weekend when the "Giant" hit, it popped the #36 green braided cord above the hook as it took off. But the Crane 4/0 SS swivel was intact. I have had nothing yet that broke either barrel swivel. Note that neither has the clips (as I have had the clips open up on the 3/0 Brass barrel swivels)-- I was using them on the end of the leader for the small eye Kahle hooks.
Also, I have had 3/0 three way brass swivels snap off (by the "Giant"). So I do not use them any more.