If re-written to be less annoying, those characters would have worked (well not Jar Jar. That was just pure garbage).
I'm talking from a purely individual, scene by scene scale rating, that the scenes that didn't include Anakin, Padme, and Jar Jar were pretty good.
For instance, the scenes with Obi-Wan and Qui-Gon = good. Maul and Palpatine = good. Jedi Council discussions = good.
Obviously the overall story would fall apart without the main character, but I was referring to the enjoyment factor of each individual scene when broken down individually.
In a way you are saying that The Star Wars prequels are like the Scary Movie series, where only two or three good jokes can be found amid all the awfulness. Of course, despite those few good jokes the Scary Movies are still not worth watching.