Stall vs. overspeed
I would like to ask pro pilots to explain one thing. What is considered a bigger threat when flying an airliner: Overspeed or stall?
What is more serious condition? What is harder to recover from? What time in training and simulated session is given to each situation?
When I read about crashes like Birgenair 301 or AF 447 I have a perception that pilots didn't recognize stall condition and it may something to do with stall/overspeed confusion. In Birgenair case the pilot faced overspeed warning with stick shaker at the same moment. At AF447 there was no overspeed alarm as far I know but pilots ignored stall alarm for 54 seconds without taking proper action and pulling back the stick for the majority of descend led to fatal ditching.
One more question. How is the stall alarm triggered? (I mean what sensors are taken and evaluated to get the stall alarm in the cockpit.)