I'd bet that most if not all of the posters advocating total automation as the
future for transport aircraft are not pilots.
A few thousand hours of real flight time experiencing the myriad of dynamic situations and unexpected failures most Pilots have should convince even the most die hard computer nerd you can't program for every situation, not to mention computer failures themselves.
So allegedly Sully could have 'made' Teterboro that day, interesting, what if he had tried for it and came up short, you can't always predict glide distance and winds can change at a moments notice, in that case most likely their chances of survival were zero, imagine 'landing' an A320 in a built up area without power
He made the right decision, saving everyone using his judgement, experience and skill, three qualities a computer will never have.