Didn't Kurtz get fired midway through production of ESB and replaced by Howard Kazanjian (who also did ROTJ)? Maybe we should change the name of this website to originalduology.com if people hate ROTJ so much.
Anyways, onto the topic. Even though I prefer SW, and I can see the appeal of Star Trek. TOS and TNG seem to be very enjoyable shows that have a few great episodes in them. DS9 I heard has a strong cult following, and Voyager and Enterprise are shows to be avoided.