I have worked with electronics all my life, and the cold solder joint gremlin is as old as electronics themselves.
That's why I prefer "cable law" to either normal or alternate law. Reading the transcript of the AF447 CVR, the flight crew debating this law and that law like barristers before the Bar as they managed to hold the aircraft in a continuous stall for three and a half minutes from cruise altitude to "sound of impact", or seeing that Asiana crew "point and click" their auto-throttles to a short landing and snap their tail off on a bright CAVU day in SFO, does not give one confidence in the basic or CRM training of non-US crews.
On the other hand, Sullenberger dealt with a double engine failure by first flying the plane, second making sound decisions and third exercising good CRM. I have to think that even he was very aware of the fact he was flying by wire since, contrary to procedure, the first thing he did was fire up the APU, a task that was supposed to be further down the checklist. He knew that without electricity there is inevitable lawlessness.
I have always been uncomfortable in any fly-by-wire aircraft when not wearing a parachute, which is why the DC-9/MD-80 with it's direct cable, servo tab flight controls, not to mention the smooth, quiet ride up front, was my favorite airliner of all time.