DS9 is and likely will remain my favorite Trek, but it was not without problems.
One thing that bugged me was when the writers had to force a particular issue. For instance, they spent years developing Dukat into a nuanced, complex individual. Apparently, some of the writers felt viewers were sympathizing with him too much, hence his psychotic break and turn as the "Anti-Emissary". Unfortunately, this threw away most of what made him interesting, and there didn't really seem to be a good reason for it, other than to make him Pure Evil and remind viewers they shouldn't like him at all.
The literal
deus ex machina in "Sacrifice of Angels" proved the writers had written our heroes into a corner, and there was no way out except to have the Prophets wave their magic wand and dissolve the Dominion fleet. That Sisko didn't even think of talking to the Prophets beforehand makes it worse.
There were several things that came up repeatedly which got a little tiresome:
* Worf being a big blowhard and not having a sense of humor.
* Ferengi "comedy".
* The continual descent of the Mirror Universe concept into utter absurdity.
One thing I've always found an interesting dichotomy on DS9 is that the writers could handle complex social and religious issues with subtlety and grace, but when it came to handling romance, they felt the need to drive the point home with a sledgehammer. "His Way" is a pretty good example of that--not an awful episode, but riddled with cliches, and enough manipulation to make me wonder why in the world Kira would get together with Odo after all that. Other romances were also handled in a silly, high-schoolish fashion, except for Sisko/Kasidy, which I found fairly natural.
The last thing I can think of right now is that there were often
claims of consequences, but we never seemed to see them. They did try on a few occasions--like Kira being pissed at Odo for his actions during the Occupation Arc, but that was swept under the rug with an offscreen conversation. Also, the time Kira found out Odo let innocent people be executed (I think?), and she said she didn't know how she could ever trust him again, etc. I never saw any fallout from that. Most of the relationships remained fairly static over time, and major stressors on those relationships didn't seem to have a lasting impact.
I guess none of those are really enormous complaints, certainly nothing of the magnitude of
Voyager's problems, but there you have it.
