This might simplify the discussion too much for some but aren't we basically
talking about which is better when automation fails and pilots have to go back to basics?
The notorious question "what's it doing now" was already used frequently in the transfer-period coming from steam gauges to glass cockpits combined with a lot more automation going from 707 style to 757/767 ,DC10 to MD11 and 747 classic to 400 series, often loosing an extra pair of eyes and ears (FE) in the process.
I don't really see one system triumphing over the other, provided good training and good working philosophy between the pilots ,both A, B or any of the other ones give plenty of opportunities to save the day when things go wrong.
If the basics are not met both A and B suffer almost equally, eg AF477 for the Bus or more recently the ASIANA 777 crash for Boeing or how about the THY738.
Complacency seems to be the biggest determining factor time and time again, too much reliance on automation is a big part of that.
Even average pilots (which most are) should be more than able to safely operate any modern jet even in adverse conditions.