Originally Posted by Da40Pilot

It actually comes down to personality and attitude. The best pilots in my opinion are the ones who are humble, willing to learn, have a great attitude and don't think they are god's greatest gift to aviation. If you're a guy who takes offense when a Captain or an instructor calls you on a mistake made and get on the defensive side and always make up an excuse....well, you're going to have a hard time getting through a 121 training program, let alone survive on the line. People alway slip through the cracks but, you get the point.