The difference is that Al Haynes felt alot of guilt and had a rush of emotions following the crash. Al was somewhat withdrawn and rightfully so. Survivors guilt etc. I am sure Al didn't want the spot light turned on him at all.

Sully was thrust into the lime light and made available by his company when he felt ready to do so.

Sully is just a regular guy. He bought me a beer one night at a hotel. Wasn't on his crew, didn't know him. Just wanted to say hello. Very likeable and personable fellow. Would have loved a chance to fly with both him and Capt. Haynes. Both top knotch individuals and class acts.