George Lucas' ideas for Phantom Menace were apparently better than his final script.
Highlight: While we have no actual first-hand copies of any of the early prequel scripts, in the case of Episode I we have a detailed summary of the revised rough draft. This comes courtesy of the 1999 CD-ROM The Episode I Insiders Guide--one of its features was a copy of the final script with annotations about how the rough draft differed. The script was not known as Phantom Menace but was titled The Beginning. Qui Gon did not enter the film until the Coruscant section and so it is mainly the story of Obi Wan Kenobi, an older, full Jedi Knight, who uncovers the invasion of Utapau (Naboo in the film), rescues the queen, lands on Tatooine and recruits a young boy named Anakin Skywalker to become a Jedi. The tone is more mature, and in fact Jar Jar is a more realistic character who speaks normally and is not so over-the-top. In many ways, it is actually superior to the final script. Look out for Darth Maul as well, who is quite vocal in this version.
http://fd.noneinc.com/secrethistoryofstarwarscom/secrethistoryofstarwars.com/thebeginning.html