I think these pilots (AF 447) were good pilots, but they were victims of the system.
Depends, I would say qualities such as keeping a calm head in an emergency, prioritizing and keeping things simple are necessary for any good pilot.
How it looks now I'm not sure they all had those traits.
It seems to me a set of extraordinary circumstances happened to coincide and the PF was the worst possible out of the 3 who it could happen to (thats how it looks to me anyway)