You have one bullet, three choices; Jar Jar for any number of reasons, Jake Lloyd for being an emotionless twit no one wants to see grow up to be a space badass, or Lucas for killing off Maul.
Jar Jar encapsulates everything that was disappointing about this prequel, much the way Darth Maul encapsulates everything that was so cool I forgive George Lucas the aforementioned Jar Jar.