Movies should be watched in the order in which they were made.
Kind of a blanket statement there, one I disagree with. If I ever get a new life and have time to watch a ton of movies in a row, I’m going RO > ANH > ESB > ROTJ > TFA. I’m also going to watch the Hobbit trilogy first and the LOTR trilogy second.
Someone seeing something for the first time is a different situation, I’ll grant that.