CO said:

You gotta relax, I can only tell ya what they told me:) Its not my opinion as I love ESB!

Sorry about that - didn't mean to bite your head off for relating a personal anecdote about perceptions of the films.

As for Jedi - I think if Lucas had stuck to the original plan to use Wookiees instead of Ewoks then there wouldn't be this nagging voice in the back of the audience's heads saying "Some stone age teddy bears defeated 'an entire legion' of the Emperor's 'best troops' - yeah, right"

I would also have meant that the accusations that the film was compromised creatively by the need to work in merchandising opportunities would have been less, or even nil.

While Wookiees achieving the same function in the plot as the Ewoks did might not have been entirely plausible either at least its not so implausible you reject entire premise.

So Jedi's problem, in a nutshell, is it breaks the suspension of disbelief that the first two films sometimes merely stretched.