Clearly some advantages to the synthetic rope over the steel.Abrasion breakage is the number one complaint of synthetic. Definitely don't need to worry about that with cable.
I winch a lot down in Moab country, and a lot of the spots require the line be over sandstone. I have rock guards for my rope, but it does become a p.i.t.a. to use it.
Many times I swear I'm going back to cable after coming home from there, but rope has so many other advantages over cable that I forgive the rope and rock guard situations.
The main issue I've had with cable is if/when it jumps the spool, it completely jams up the winch to the point you have to disassemble the whole winch to free it. Had that happen to me twice, and the last time, it put my machine and my buddy's machine in danger, and we had to wait for someone else to come along to help us get out of the situation.
I had synthetic jump the spool this year when I was winching my buddy up a steep sand dune, and there was only one direction to winch from. I knew it was going to probably screw my winch up, but we had to do what we had to do. The rope did hop the spool and cause a major mess which required me to have to rebuild my winch when I got home, but the rope didn't jam the winch, and we were able to keep using it to get him to the top.