Star Trek. Star Wars has its own philosophical moments, but they're in the form of sound bites, not a full 42 minutes to go on about it, such as when you have a TV show.
Picard is the most interesting and (most well acted) character. Worf underwent the most character development, mostly due to being in more episodes than anyone else.
Also, the movies for Star Trek didn't sully the memory of the original shows, unlike Star Wars.
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