Captains:
1. Sisko
2. Picard
3. Kirk
4. Archer
5. Janeway
Series:
1. DS9
2. TNG
3. TOS
4. Enterprise
5. Voyager
Actors:
1. Patrick Stewart
2. Avery Brooks
3. Scotty Bakula
4. Shatner
5. Janeway
None of these are fair or equal comparisons. TOS was cancelled early and season 3 was short changed with bad writing and low budgets. I actually like the 70s animates TOS series (original voice actors for the most part) much better than the TV series as it is far more Sci Fi and less cheap western looking. It really stretches the TOS ideas, it's on Netflix.
Voyager had a major shake up and major conflicts between the suits paying for the show, and those running the show and the actors. Many of the actors on that show HATED being there, and it shows (Chakotay you can almost see wanting to laugh at how bad his dialog is)
Kate Mulgrew was miscast as Janeway, wasn't the first choice, was not a good fit, and the writing for her character was horrid and changed in tone every 2 episodes. She looks way worse as an actor on this show than she actually is, FIT is everything with casting. Janeway would be much better as a side character, doctor or science officer or something.
DS9 started as a boring show about a space station that no one cared about, then changed later into an epic space opera about war. 90% of people who are not die hard start trek fans, never saw past the first season. The show doesn't really get good until season 3.
Enterprise was a disaster early on, no direction, then finally got some beef as the story about the time wars and the blue dudes etc.. started getting interesting, then they shit all over everything with the final season because of the paramount suits.
Bakula was boring as all get out, but like Janeway, a decent TV actor mis-cast in the wrong role.
Acting wise, Patrick Stewart is heads and shoulders above everyone on any of the series. However you can see that even he had to find his way in the first few seasons. You can almost see his wheels turning when he spouts some epic nonsense, like "does this even make sense in terms of the episode?"
Avery Brooks isn't even the 4th best actor on DS9. Most of the best acting comes from Miles O'Brien and side characters like Gul Dukat and Garrak.
Most casual Trek fans don't know who Gul Dukat even is, or how different the Cardassians are on DS9 compared to how lame they are on TNG. Ditto for the Ferengi.
The movies, all of them, are fucking garbage. First Contact and Wrath of Khan are watchable, but both would have been much better as 3 part TV episodes instead of movies. The B plots in those films are atrocious. Rock and Roll Warp Drive Drunk Guy was embarassing.
The JJ Abrahms trek movies are simply not start trek. They are generic Sci Fi action movies with Star Trek "skins". The first movie is like a mash up of Cliff Hanger and Terminator 2. The 2nd movie is just JJ pissing in every fan's face and laughing about it.