Where I worked before I retired the Iron Workers always used Nylon slings ( tow straps) they hardly ever used steel slings however if a lift required the steel slings they were used.
Always use a shackle on the ends so that the slings doesn't get a crease or gets bent over. In time the end loop will start to fray from places where the sling gets bent or creased often. Also constant rubbing in one area will cause premature failure.
If you see the treads on the sling starting to break, chuck it in the garbage and get a new one. I have nylons slings in my truck and in my Side X Side.
I still have chains but mostly use the nylons slings now.
Soup .