EDIT: I just want to make clear this is sarcasm.
I’m feeling personally attacked here! I come down on the Boimler side here I think, and I’d hate to argue with Beckett but she’s wrong.
All Star Treks are awesome in their own way and there all my Favourite. I can’t and I won’t be made to pick a series.
Those Old Scientists era is where it all starts and nobody tackles those great social issues like they did.
The Animated Series is so forking batshirt crazy and fun. And they brought us my bois, the Kizinti!
The original cast movies brought Trek back from the repeats. Yes even numbers are better but five got me to ask “Why does god need a starship”
The Next Generation really kicked it in to high gear and expanded the universe.
DS9 - I wouldn’t recommend any long story format higher.
Voyager - if I didn’t love Voyager Janeway would kick my ass.
The TNG movies had some kick ass action and amazing space battles.
Enterprise really explored the beginnings and had a lot of fun filling in the niches and contradictions.
I could keep going on and on but it’s late and I’ll leave you with how I alway feel about Trek series. My favourite one is one that I’m watching right now
Niven actually wrote them in himself, but the animated series has a loose connection to the rest of canon. There were rumors that Enterprise was going to introduce them properly before it got canceled.
Voyager - if I didn’t love Voyager Janeway would kick my ass.
No need for threats. Voyager is good.
Blink twice if you need help.