In an edit for min time and for enthusiasts, I'd say drop em on the planet as quickly as possible or bypass alltogether.
If a couple of minutes can be spared in a longer edit, newbs and casual viewers might need some expo about the Force and situation. The expo might be dropped while the intercut manace is building against them.
The reason for 3 crawls is to explain the switch from queen to senator. I've tried and failed to find another way, such as making PA a senator from the start. If someone else could find a solution.... Otherwise, have fun writing crawls :)
The only part of 3PO that is definitely out of place in a more grim edit, IMHO, is the arena exclamations and smiling green tentacles.
Any edit have R2 simply pushing 3PO over and then letting himself fall (ala ROTJ) and then picking up action after he lands?
I love the PT visuals. Makes me want an "adult SF buff" version of I and II