trevanian
Rear Admiral
DS9 is about the closest we'll ever get to Star Fleet Blues but that's not terribly close at all, sadly. Still my favorite of the spin-offs, though.
It is because it exists in parallel with TNG that it has that weight. A Section 31 series in Kirk's time would be close to meaningless, we've already seen that kind of spy op with ENTERPRISE INCIDENT, and nobody lost any sleep over it. But showing that and political paranoia in century 24 really carries some OOMPH because they steer clear of it so much, with only a couple welcome exceptions.
So comparing DS9 unfavorably to something like HILL ST is meaningless, because Hill St didn't exist in an era of only-Waltons-and-sitcoms. HILLST did stuff better and pioneered, but DS9 expanded that TNG universe to something I could find credible, which is an enormous accomplishment given my distaste for most things TNG.
Seeing Robert Butler's HILL ST pilot is one of the most exciting live-wire things I can remember, but I think for a whole first season by comparison, NYPD BLUE buried it. Amazing to say now that he has become feeble on that CSI thing, but Caruso was absolutely in the groove back in the early 90s, with NYPD and before it, that Robert DeNiro/Bill Murray feature, which seems practically like Caruso's audition piece for NYPD.