Guess I'll come in hot:
The Good:
1. Strange New Worlds. SNW's first season didn't have a single miss, an insane average. Every other Trek show has a few stinkers in their first season, and for this reason, I'm giving SNW the win here.
2. TOS. That said, we wouldn't be here without TOS, and that first season is still a high water mark for Trek shows. And there is a big gap between these top two and the rest ...
The Mediocre:
3. Picard. It's weird, this had some fun ideas, but badly mismanages the season finale. I rank it highly because it did a lot of neat things and intoduced a strong cast, but ... fails to land.
4. Deep Space Nine. I'll be honest, I think DS9 gets here on the strength of Emissary and Duet. I think Emissary is one of Trek's better pilots and Duet is an all time great episode.
5. Discovery. Discovery's first season was messy, trying a few things and not to the best success. But I still find it rewatchable and interesting. I like their depiction of the Mirror Universe, having Michelle Yeoh as both Emperor and the gone too soon Captain Georgiou, Jason Isaacs brought a unique energy and the whole show was anchored by Sonequa Martin-Green's fantastic Michael Burnham and Doug Jones as Saru. One of the challenges of Picard and Discovery is that since both are trying to do a season-long story, and both punt the ending, it becomes hard to evaluate the whole season.
6. Lower Decks. I hated the first half of the season, really liked the second half. It's weird, split the season in half and the first half goes to the bottom, but the second half goes up to 3rd, so I'll average it out to here.
The Rough:
7. Voyager. Meh. I dunno, it's a short season, and just not that interesting.
8. Enterprise. Yeah ... I hate this show, but I'll give it that the average quality here isn't bad, it just never rises above aggressively mediocre.
9. The Next Generation. Oof. Let's just not talk about how bad this is. Some of Trek's worst episodes are found here. It's honestly a minor miracle it survived to improve.
Not Ranked: TAS and Prodigy, 'cause I haven't watched them.