It seems to me that Cables vs FBW misses something. There needs to be a third category. Some of the discussion here is treating "cables" as aircraft capable of a manual reversion where you can fly by actual cables attached to tabs that will move surfaces aerodynamically. And, on the other end meaning the Airbus FBW system.
In the Boeing line the 727's and 737's fit the "cable" definition, but the 747 does not. If all of the redundant hydraulic systems are drained, there is nothing tying pilot to surfaces, yet it is not FBW either.
There may be similar trust in cables and hydraulics, and less trust in computers and electrons by some in this discussion.