Oh that´s a great idea for an article! Thanks for sharing and reminding us the amazing work of Mr. Spielberg. I cried sitting in the cinema while watching 'Schindler´s Liste', it´s surely one of his best pieces. It is definitely worth being 'the number one'. I also like 'Catch me if you can' which I have seen several times - DiCaprio would have deserved an Oscar for that one. The number 6 is cult! I was grown up with E.T. - it is an absolutely outstanding movie, too.
I am also a huge fan of 'Minority Report' which hasn´t been on your list. I actually don´t like much science ficion movies, but this one is exceptional!
Well.... it´s hard to decide. He was just brilliant in everything he did :-)