I don't really agree with you (but how can I, I became a fan when I was 9 years old and watching Episode I inn the cinema). Now, some years after that, I think that Episode I is not worse than the OT. It is the beginning and as a beginning it can't be too similar to the middle parts or the ending. I was rather disappointed by Episode II, but III is imho as good as V. Just my opinion of course, but I really love all the SW movies and believe that all have the same magic in them.
And I think that when a few years have passed people will remember the sextet as a sextet and not as two trilogys

. At least I hope so.