This is a list of my favourite and least favourite episodes from each series.

The Original SeriesEdit

The Best

• "Where No Man Has Gone Before"
• "The Enemy Within"
• "Balance of Terror"
• "Space Seed"
• "The City on the Edge of Forever"

• "The Doomsday Machine"
• "Mirror, Mirror"
• "A Piece of the Action"
• "The Enterprise Incident"

The Worst

• "Spock's Brain"
• "The Empath"
• "The Mark of Gideon"
• "Turnabout Intruder"

The Animated SeriesEdit

Only Good Episode

• "Yesteryear"

The Next GenerationEdit

The Best

• "Conspiracy"
• "The Measure Of A Man"
• "Q Who"
• "Yesterday's Enterprise"
• "The Best of Both Worlds" & "The Best of Both Worlds, Part II"
• "The Drumhead"
• "Conundrum"
• "Cause and Effect"
• "I Borg"
• "The Inner Light"
• "Tapestry"
• "The Chase"
• "All Good Things..."

The Worst

• "Code of Honor"
• "Haven"
• "The Big Goodbye"
• "The Outrageous Okona"
• "The Royale"
• "Shades of Gray"
• "Ménage à Troi"
• "Dark Page"

Deep Space NineEdit

The Best

• "The Maquis, Part I" and "The Maquis, Part II"
• "The Jem'Hadar", "The Search, Part I" & "The Search, Part II"
• "Past Tense, Part I" & "Past Tense, Part II"
• "Improbable Cause" & "The Die is Cast"
• "The Way of the Warrior"
• "Starship Down"
• "Little Green Men"
• "Apocalypse Rising"
• "Trials and Tribble-ations"
• "For the Uniform"
• "In Purgatory's Shadow" & "By Inferno's Light"
• "Call to Arms" & "A Time to Stand"
• "In the Pale Moonlight"
• "Sacrifice of Angels"
• "Tears of the Prophets"
• "Image in the Sand" & "Shadows and Symbols"
• "Inter Arma Enim Silent Leges"
• "Tacking Into the Wind"
• "The Dogs of War"
• "What You Leave Behind"

The Worst

• "The Nagus"
• "Second Sight"
• "Family Business"
• "Bar Association"
• "Looking for par'Mach in All the Wrong Places"
• "Ferengi Love Songs"
• "Profit and Lace"

VoyagerEdit

The Best

• "Non Sequitur"
• "Deadlock"
• "Death Wish"
• "Tuvix"
• "Basics, Part I" & "Basics, Part II"
• "Flashback"
• "Worst Case Scenario"
• "Scorpion" & "Scorpion, Part II"
• "Year of Hell" & "Year of Hell, Part II"
• "Dark Frontier"
• "Relativity"
• "Equinox" & "Equinox, Part II"
• "The Voyager Conspiracy"
• "Endgame"

The Worst

• "Elogium"
• "Twisted"
• "Resistance"
• "Threshold"
• "The Chute"
• "Favorite Son"
• "Vis à Vis"
• "11:59"
• "Barge of the Dead"
• "Spirit Folk"

EnterpriseEdit

The Best

• "The Andorian Incident"
• "Dead Stop"
• "Similitude"
• "Stratagem"
• "Azati Prime"
• "Countdown"
• "Zero Hour"
• "Borderland", "Cold Station 12" & "The Augments"
• "The Forge", "Awakening" & "Kir'Shara"
• "Babel One", "United" & "The Aenar"
• "Affliction" & "Divergence"
• "In a Mirror, Darkly" & "In a Mirror, Darkly, Part II"
• "Demons" & "Terra Prime"

The Worst

• "Unexpected"
• "Acquisition"
• "Oasis"
• "Two Days and Two Nights"
• "A Night in Sickbay"
• "Vanishing Point"
• "Extinction"
• "Bound"

Films Edit

Ranked by preference (starting with my favourite)

1. Star Trek II: The Wrath of Khan
2. Star Trek VI: The Undiscovered Country
3. Star Trek
4. Star Trek IV: The Voyage Home
5. Star Trek: First Contact
6. Star Trek III: The Search for Spock
7. Star Trek: The Motion Picture
8. Star Trek Generations
9. Star Trek: Insurrection
10. Star Trek Nemesis
11. Star Trek V: The Final Frontier

It's probably worth noting that I enjoy watching all of the films, even those at the bottom of my list (though Star Trek V: The Final Frontier can certainly make me cringe at times...)