Okay, for the Hell of it, DS9 in 50 episodes. I watched the series in the '90s, and liked it, but I wouldn't call myself a Niner. Proceed with reading my list of boiled down DS9 at your own risk. I'm covering all seven seasons over the course of five modern seasons.
Season 1: Bajor, the Cardassians, and the Maquis
1-2. "Emissary"
3. "Duet"
4. "In the Hands of the Prophets" (Kai Opaka has died off-screen)
5. "The Homecoming"
6. "The Circle"
7. "The Siege"
8. "The Maquis, Part I"
9. "The Maquis, Part II"
10. "The Collaborator"
Season 2: Introduction to the Dominion
1. "The Jem'Hadar"
2. "The Search, Part I"
3. "The Search, Part II"
4. "The Abandoned"
5. "Life Support"
6. "Heart of Stone"
7. "Improbable Cause"
8. "The Die Is Cast"
9. "Shakaar"
10. "The Adversary"
Season 3: The Klingon War & Changeling Paranoia
1-2. "The Way of the Warrior"
3. "Hippocratic Oath"
4. "Indiscretion"
5. "Homefront"
6. "Paradise Lost"
7. "For the Cause"
8. "To the Death"
9. "Broken Link"
10. "Apocalypse Now"
Season 4: Lead-Up to & Beginning of the Dominion War
1. "Rapture"
2. "The Begotten"
3. "In Purgatory's Shadow"
4. "By Inferno's Light"
5. "Call to Arms"
6. "A Time to Stand"
7. "Rocks and Shoals"
8. "Behind the Lines"
9. "Favor the Bold"
10. "Sacrifice of Angels"
Season 5: Sisko's Destiny & the End of the Dominion War
1. "Waltz"
2. "Tears of the Prophets"
3. "Image in the Sand"
4. "Shadows and Symbols"
5. "Penumbra"
6. "Til Death Do Us Part"
7. "Strange Bedfellows"
8. "The Changing Face of Evil"
9-10. "What You Leave Behind"
DS9 in 50 episodes. So much left out. But gets right down to the bone. Is this a better series? I think not. 10-episode seasons aren't better, IMO. 13 episodes, I could live with. Not great, but I could (and have) lived with it. Five seasons feels too rushed. Seven seasons works better. Now this is the part where people can either agree with me, disagree with me, or say, "You have a point, but... " Take your pick.
For those wondering the reasoning behind where I stopped and started seasons: Modern serialized seasons have their main stories end that with that season. Which is why I chose to end "Season 3" with "Apocalypse Rising". With "Season 4", I made it the real DS9's mid-S5 to mid-S6, and decided Sisko retaking the station was a good stopping point.
And, yes, I know I made a ton of tough cuts. Hopefully you agree with me that these shouldn't have been cut. But hey. "10 episodes are better!" and "We only need five seasons!"