I thought all of the Borg appearances on TNG were really well done, except "Descent"
, but that one appears to have been retconned or ignored by "Star Trek: First Contact"
(aside from the fact that the Borg Queen refers to herself as "I", I guess), so no lasting damage there.
I think if the Borg had never been used again after "Q Who"
, it would feel like something was missing and raise a lot of questions. I bet a lot of Star Trek fans (including ones starting threads here) would be asking, "What was with that Borg thing? Why didn't they ever follow up on that?". I imagine them leading a poll of one-shot villains we would have liked to see again.
was just the teaser and "The Best of Both Worlds"
was the main event. I also think it was the most epic and satisfying story on TNG, so I hate to think of the show without it. The arc changed the Picard character in a profound way and was an asset to the series overall.
was a worthy sequel, coming at a Borg story from a different angle and raising new, equally interesting moral and philosophical questions. I never saw their "Voyager"
episodes (except "Endgame"
, which I hated), but I do feel that in the end the Borg made a few too many Star Trek universe appearances, because in my opinion "Star Trek: First Contact"
was a good enough send-off for them.