Temple of Doom and the Yound Indy series were Lucas first prequels.
He should have learned his lesson.
But he did not he went and made 3 star wars prequels films. 4 if you count the clone wars animated movie.
Still Doom was made with Spielberg. Young Indy was not. Young indy also did not have John Williams. Probably 2 very big mistakes. and also no ford in young indy except for 1 episode.
As VaderisnotHayden said he prefers a bad film with the real indy harrison ford with being Directed by Spielberg and music by John Williams than young indy. Kingdom of the Crystal Skull had all involved. Except the most important people Douglas Slocombe who is like 90 years old or somthing the cinematographer, and no Lawrence Kasden or Jeffrey Boam as screenwriters. Spielberg accepted the script by Darabount and was a go to shoot it. But Lucas rejected it.
I remember the Ford in the Young Indy inserts the dialogue was pretty bad and the end scene was pretty laughable. Also Ford looked like Richard Kimble and not indiana jones in that beard.
I still to this day wonder had river phoenix not died would they have made a Young Indy series of movies. I know ford was happy with Phoenix playing him in last crusade. Ford knew him from working together on the film mesquito coast. We all know that they had to recast the younger indy with Sean Patrick Flannery. And that it was made as a tv series. Though shot on film and the series shot around the world and had a very film like production unit. The young indy crew is mostly who Lucas used to make the star wars prequels. Rick McCallum being the most noted person.