On a Bay Star the stackable "Lego" style will be fine. However I can't use them because of our weight. (I'm talking the RV not the DW and me😁
I discovered even back in my travel trailer day, it was better to put something underneath the jacks. I took 2x12 treated board and cut them 12 inches long, making 2x12x12 boards for underneath the jack foot and attached straps to pull them out from under. That was 20+ years ago and I still have them.