Originally Posted by Hunter Rider
A script is not only about advancement though, within a film, especially in this genre, there needs to be pay-offs to conflicts that are built up. To me Han vs Boba was Solo's individual showdown within the saga, the personal resolution of his "There's a price on my head" arc started in ANH.
You could argue that Jabba should have been his personal showdown but to me Boba was always more suited as he was the one that finally caught him and was sort of a kindred spirit who took a separate path at the fork in the road.
See to me I thought this more Han and Jabba than Han and Boba.
I see what you mean though, I always felt like in Episode III Mace wasn't really paid off. It seemed like they were building up to a show down between him and Anakin or Boba.