I know that Phil Tippet also worked with the dinosaurs in JP, I believe the animatronic ones. JP is, as a whole visually, far more effective and natural looking (to most average film-goers) than the SE was.
The reason I even mentioned this is because I just watched my Superbit version of JP and noticed that Dennis Muren did his work in JP leading up to it's 1993 release. The full motion creatures, at their basic final design, looked FAR better than Jabba or any other CGI editions from George for the SE. I mean, it WAS supposed to be an anniversary celebration of a timeless set of classic films.