Pretty good choices - But Deep Space Nine Trumps Them All
With all due respect to the popularity of Next Generation, Star Trek: Deep Space Nine was a higher quality, better written, better acted, better directed, better implemented, and immensely more entertaining and provocative series than any other Star Trek enterprise (pun intended). "The Visitor" has oft been reported as the most beloved episode of all Star Trek episodes. Admittedly, Deep Space Nine didn't find its feet until the third or fourth season, but once it did, it addressed issues far more effectively and poignantly than any of its predecessor series (or the movies). Plus, it finally had a Star Trek captain who should record a record album (Avery Brooks, now a professor a Rutgers University, does an amazing one-man show of Paul Robeson where he brilliantly sings "Old Man River").