You also post in this forum, which sort makes you a little biased. The claim was never made that all young people would prefer the PTs, I'm sure many kids who grew up bacin the 70s and 80s never got the OT either and they are the ones writing those long diatribes against the entire franchise. The only claim made is that younger viewers are in a different position to enjoy the films and their judgement would be different and not stuck in some idealized version of their youth.
Here's an interesting article on RottenTomatoes over how the OT was reviewed and viewed by the 'established' press back when they were first released.
http://www.rottentomatoes.com/news/comments/?entryid=197859