Sonnyboo's argument is very valid imho, when viewed through the saga 1-6 mentality Lucas has been using since the later 1990's.

My Star Wars Saga i grew up with is 1977-1983 and that is the valid way i watch the films.

I consider everything else to be added stuff not a part of the original film canon. This includes any of the 3 special editions of the original trilogy, but most especially the prequels as written and filmed and not as originally conceived in the seventies and then updated with the changes made in empire strikes back and return of the jedi.

I can except the Vader as father and Leia as the sister retcons. The sister one being the weaker of the two, but the prequels went way beyond that, they completely and ridiculously contradicted the oot. To such a degree Lucas actually has had to change things story wise with the bad cgi re-edits and still they don't match as a whole puzzle put together.