I have been a Star Trek fan most of my life. I remember watching TOS reruns with my father when I was a little girl.
DS9 is my favourite series. What do I love about it? The character development, the relationships, the conflict between the characters, the story arcs, the exploration of culture and religion, the bad guys, the strong women, and so much more.
My second favourite series is TOS. I am also a fan of ENT and NuTrek. I hope that is accepted around here.