Oh man I also remember going up to the cockpit on a Melbourne-Darwin Ansett flight back in 1988 or so. Such a shame my own son will likely not experience that (unless he becomes a pilot himself of course).

My least favourite flight would have to be on a work trip across the Cook Strait between Auckland and Christchurch, in a small (I think Saab) commuter turboprop. Went through a storm so bad that I swear the wings were about to come off... the only flight I've ever been on where a round of applause broke out on landing and the pilots looked physically relieved afterwards.