Star Wars was wonderful, but it is a soap opera at heart, much like Game of Thrones, The Borgias, and all of the hyper-produced mega shows today; they're just Falcon Crest and Knot's Landing with more exotic settings and better lighting. One can imagine the stereotypical organ riff after DV says "I am your father". Dun, dun, duuuuuuuuuuuuun!
I can tune to a TNG episode late at night, relax, and enjoy an episode without wondering what happened the previous week. It was truly an adventure of the week franchise, even most of the movies.
Another difference is that Star Trek TOS left a lot to the imagination. It didn’t matter that it was plywood sets and fiberglas boulders. Your imagination took hold and you ignored the sets and got involved with the actors telling the story. You became friends with Spock and Kirk and Bones.
In Star Wars, everything was laid out in intricate detail and left little for the imagination to work on. It was not as personal, and in fact, many preferred the evil Darth Vader character.