Your favourite three characters from each series

[HIjol]

The Ships (they are absolutely Characters)
The Captains/Commanders
The Theme Songs (except for “Enterprise”)

 

[Sakonna]

TOS: Uhura, Uhura, Uhura

TNG: Troi, Riker, Guinan

DS9: Kira, Garak, Sisko

VOY: Kes, Seven, Torres

ENT: Trip, Trip, Trip

DIS: Burnham, Saru, Reno

PIC: Raffi, Jurati, Rios

LD: Mariner, Boimler, Ransom

PRO: Zero, Rok-Tahk, Gwyndala

SNW: Chapel, Spock, Pike

 

[Lynx]

Star Trek
Kirk
Spock
McCoy

The Next Generation
Data
Riker
Picard

Deep Space Nine
Garak
Quark
Sisko

Voyager
Kes
Chakotay
Paris and Janeway

Enterprise
Trip
Porthos

Discovery
None

Picard
Hmmm......I don't know
All of them was better in TNG and VOY

All series together
Kes
Garak
Quark
Gowron

 

[Qonfounding Ghooool]

I'm only going to do the Broadcast Era series because I haven't seen enough of the more recent series to have worthwhile opinions. Please include as many series as you like in your lists.

The Original Series
Spock
McCoy
Scotty

Scotty
Spock
Uhura

The Next Generation
Data
Reg Barclay
Q

Geordi
Q
Ro (or Guinan, it's a tie, and ones where they're both in it can rescue any episode...)

Deep Space Nine
Garak
Quark
Worf

Ben Sisko
Bashir
Garak

Voyager
7 of 9
The Doctor
Tuvok

Tuvok
7
Janeway

All Time Top 3
Spock
7 of 9
T'Pol

Tuvok
Q
7

 

[Lord Garth]

We can do non-main cast? Okay. That'll make things more interesting in some areas.

TOS: Kirk, Spock, Scotty
TNG: Picard, Ro, Guinan
DS9: Sisko, Jadzia, Garak
VOY: Janeway, Seven, Torres
PIC: Picard, Seven, Raffi
DSC: Burnham, Book, Zora

Honorable Mentions: Worf, Tuvok, Rios, Dahj

I'm leaving so many out of each of these series by sticking to three.

Every Other Series: Not my lane, I don't remember very well, I don't have three favorites for each, to quote Yul Brenner, "etcetera, etcetera, etcetera."

 

[Uhura's Song]

TOS/TAS: Spock, Kirk, McCoy
TNG: Data, Picard, Q
DS9: Kira, Jadzia, Garak
VOY: Seven, Janeway, Torres
ENT: T'Pol, Tripp, Phlox
---------------
DISCO: Saru, Tilly, Georgiou
PIC: Jurati, Laris, Shaw
LD: Tendi, Boimler, T'Lyn
PRO: Gwyndala, Wesley, Maj'el
SNW: La'An, Pike, Una

Note: I edited so no character could be named twice (Spock, Kirk, Picard, Janeway, Seven, etc.).