For me it is probably:
1. Next Generation (tie)
1. Voyager (season 4-7 in particular) (tie)
3. Star Trek Film series (Some definite high points, but does not have the bulk of content or great moments of the above series)
4. Deep Space 9 (mostly because I couldn't get into it.)
5. Original Series
6. Animated Series (if it counts, I don't know if it really does)
Unranked: Enterprise (because I haven't seen it)
I think my two favourite Star Trek races are:
* The Hirogen - Tony Todd played one of the most badass aliens they ever came across when he played the Alpha Hirogen. Although my favourite episode involved the Hirogen transforming Voyager into a giant mobile holodeck, and put it to the World War II setting, with the Federation brainwashed as La Resistance, and the Hirogen played the role of the Nazi Master Race =P .... Neelix was in another section, and was an Iron Age Klingon War Chief, one of the best moments was the charge of the Klingons against the Nazis =P
* The Borg (for obvious reasons, they're just damn cool).
I can understand how people can like Deep Space 9, it is similar to other Sci-Fi shows that focus on one theme, rather than have a large variety of themes. Although I think my main attraction to Star Trek over other science fiction shows is that it likes to shake up the environment very often. You don't get too many similar episodes in the other series', but in Deep Space 9, it seems a lot of the episodes are on the same themes. Voyager had a fairly continuous story, but unlike Deep Space 9, that continuous story arc actually dominated very few episodes - there was lots of variety in Voyager. I think if I was more into the sort of soap-opera continuous storyline type show, I would like Deep Space 9 the best; but I'm not.
I describe myself as a little dose of toxic masculinity.
