I think I can chime in here.
In the Trek franchise, I've felt that the best of the lot was actually Deep Space Nine; it told a story over 5 seasons with a beginning, a middle, and an end.
Liked Bablyon 5, when I could cach it; syndicated series suffer from the fact tht some station will air new episodes in an inconsisent manner, and oftn it would be hard to know beforehand what the latest time slot the show had been shifted to. Farscape was an excellent show, but it suffered from the same scheduling malaise.
Battlestar Galactica is a whole different level of good, however. The T and A is just part of a complex conflict beween Cylon and iman, and the tone of a technological sociey with true gender equality, and how tha plays out is just afascnating side story. All of it is plot driven, and f you havne't watched the second and third seasons, ou are deriving yourself of some real quality story telling.
(Bamber in a towel i just soooo good as eye candy. And you have to watch the episode "Exodus" part II for a scene that has been nominated for a special effects Emmy involving the Galactica; it's js jaw dropping. (And the season ending cliffhanger "Crossroads, part II, has to be seen for its last 10 minutes.)