danny la rouge
More like *fanny* la rouge!
I disagree about Voyager: I liked it straight away, and thought it was season 3 it started to flag. Season 4 was given new life by Seven of Nine, who is now my favourite non-TOS character.All the three first Star Trek spin-offs struggled for the first two seasons. Like TNG and Voyager, DS9 doesn’t really get good till season 3.
DS9 does pick up around season 3, but remains patchy and trails off again. The Dominion stuff is only good for the build up. Once the Dominion become established, they're rubbish.
DS9 has some decent stand-alone episodes. The one with the Tribbles, for example. And were it not for O'Brien, I'm not sure I'd have kept watching to find them.
I'll rank my Trek spin offs once I've seen them all, but so far DS9 is at the bottom.