Going to go a little further... going to give all series a plus
and minus.
PLUS

TOS: I really enjoy the interplay between the detached and logical Spock and the far more emotional Bones.
TNG: Of all the series, I still think this one has the highest general entertainment and enjoyment factor.
DS9: No Trek did character development better. And instead of shuffling struggling characters to the background, it worked to make them more viable.
VOY: Voyager had an incredibly charismatic cast, allowing it to be the Trek equivalent of comfort food.
ENT: Well... it had some good episodes. And was willing to reinvent itself.
DIS: A tall and polite alien of a prey species... an ensign on the spectrum... a crazy empress turned spy... a completely irascible scientist and his doctor boyfriend... a version of Captain Pike so awesome he got his own spinoff... this one had a lot of intriguing characters.
LD: This show's sense of humor was so zany, it was like reading one of my own fanfiction parodies.
PIC: I don't think any Trek managed to be as touching as this one. Of all the times Trek has made me cry, probably half of them were from this show.
PRO: Yes, it's colorful and kid friendly... but it's also intelligent and more important, it's legit Trek.
SNW: I think that with nu Trek, there was a lot of dart throwing, trying to find the show that would have the fun of TOS, the intelligence of TNG, and the character development of DS9. Here, they mostly succeeded.
MINUS

TOS: It had some cheesy FX... also, I think Kirk might have inadvertently caused a few civilizations to go extinct.
TNG: The characters were a bit static, some of them weren't used as effectively as others.
DS9: Had some depressing endings.
VOY: The showrunners were sloppier than a room full of teen-agers and two-year-olds. Harry's non-promotion was but one symptom of this malady.
ENT: No show trashed its potential more thoroughly, not even Voyager. It used the same 23rd century tech and weapons as TOS, and instead of being about humanity slowly working toward building the Federation, it featured the temporal cold war, and made the Federation an inevitability before it existed.
DIS: Despite the engaging characters, I just couldn't get into this one.
LD: Some of the characters' personalities can get... grating sometimes. Especially Mariner.
PIC: It took us into some dark places, and kept us there for a long time. The Trek-verse seemed almost dystopian at times.
PRO: The tech increase seems a little jarring. Basically, with proto drive and quantum slipstream drive, ships can cover Voyager's journey in almost no time.
SNW: Has to struggle against canon sometimes, most notably in terms of Spock's assorted relationships.