If you watch TPM, Jar Jar is not funny at all, and he practically ruins every scene, and what bothers me is he ruins what could have been three dramatic scenes.
-When Padme & Anakin first meet, should have been very iconic and should have foreshadowed how everything goes wrong because of these two individuals for the rest of the saga. Instead you get Jar Jar doing slap stick comedy in the backround while fumbling & bumbling into all the tools and objects in the junkyard.
-When they are all at the dinner table at Anakins house and it is a pivotal scene in the movie with good dialogue between Anakin & QuiGon. But through that we get Jar Jar spitting out his tongue, belching, and saying 'scuse me' while QuiGon grabs his tongue.
-The Gungan battle vs The droids starts off so great, but ends with total comedy schtick with Jar Jar jumping up and down with a gun wrapped around his foot killing a couple of droids within seconds, just an awful ending to a great setup.
If you watch The Original SW Lucas knew when it was time for comedy and time for drama. Just watch the ObiWan/Luke talk about Lukes father in ObiWans hutt. Right before it gets to the key conversation in the movie, C3PO says, "If you don't need me anymore sir, I am going to shut off for a while." That is Lucas understanding in 1977 that we don't need to hear annoying C-3PO while Obiwan talks about the force, the lightsaber, and Lukes father being killed by Vader.
The ending of The Original SW as Luke is trying to blow up the death star, it keeps cutting back to Leia and C3PO, but they say nothing, there is no need to hear them talk, just the look of despair on their face makes the drama in the scene so much better.
I often wonder what happened to Lucas from 1977 to 1999, and how he could make such a perfect movie where everything is done right in terms of comedy, drama, and action for the Original SW, and how everything is done totally wrong in terms of comedy, drama, and action in TPM.
TPM is a dud in my view, cause the main characters are QuiGon & Jar Jar, and Padme, and two of them are irrelevant after seeing the PT. That movie is not even a good setup movie.