Mark Hamill wanted George Lucas to be part of the new trilog

Honestly Revenge of the Sith had some flaws but was still great. Mostly because Steven Spielberg was actually involved with writing and directing that prequel.

Lots of people tend to say that Revenge of the Sith was only good compared to the first two but Sith was great and could even stand next to the OT. Despite the first two not being that good they still helped tell an interesting arc and storyline.