The main problem with your question is that in the prequal trilogy Lucas has merely finished and re-inserted scenes into the DVD that were only cut from the theatrical release because of running time constraints, I don't think you'll find too many people complaining about the content of what's been added to the prequal DVD's,apart from the fact that it makes a slow moving film even longer.

Whereas the original trilogy stood as they did in everyone's mind for 20 odd years before George started tinkering with them adding silly slapstick sight gags and new things in and changing existing scenes, with mixed results, and if it wasn't for a cock-eyed Rodian quick-shooter he might have gotton away with it. I don't think you'll find many fans unhappy that an original Biggs scene was resurrected (even if it doesn't quite work without the missing Tatooine /Biggs footage) however with the Jabba scene in A New Hope, Lucas was trying to salvage a scene that was unfeasible at the time and redundant because it's effectively covered in the Han /Greedo exchange. Every other change to the trilogy was added in hindsight once Lucas saw what his crew at ILM could do with a few pixels.