Again, I'll stack up the first two seasons of TNG, DS9, Voyager or Enterprise vs the first two seasons of Discovery any day of the week. Or, if we're comparing apples to apples, the first two seasons of Discovery vs the first season of those four shows. Same number of episodes after all.
No contest as far as I'm concerned.
You're right. DS9 wins.
The first four episodes of DS9 are amazing.
Emissary is the best pilot of any Star Trek show, setting up the conflicts and personalities of all the cast. You walk out of that not just knowing what the story of the series will be, but the interactions, dynamics, and motives of the cast.
Battle Lines (episode 13) is a dramatic shake-up for Bajor that has lasting consequences, building off the growing focus on Bajoran politics.
Duet (episode 19) is a masterpiece and one of the best episodes of the series. And the finale,
In the Hands of the Prophets, is dramatic and tense without having to rely on explosions and gratuitous SFX, with the tension being the characters you have grow to care about while facing an enemy that can't be defeated by punching it in the face.
The first season of DS9 is rough, but it's also set-up. They're slowly building the universe. It's super apples-to-oranges compared to the one-and-done series of
Discovery where the entire plot changes every dozen episodes. But even then, the first season if DS9 is still very different than later seasons, as the tone really focuses on being on a broken and under-equipped station.
And it deals with issues facing the real world. Religion in schools. Rebuilding after wars. Military assistance overseas. Loss of culture. It has a maturity of storytelling simply not displayed by
Discovery.
It's also curious why you didn't include TOS in that list...