Star Wars isn't really Sci Fi. None of the plots revolve around science fiction, they are just a pile of action movies. Indiana Jones in space basically. In fact most of the plot revolves around a made up religion which is the opposite of science fiction (Phantom Menace's poor attempt to reconcile the two with midichlorians notwithstanding).
Meanwhile everything done under the Star Trek banner except for the new JJ movies (which are basically Trek in name only) has been real Sci Fi. Some of it is crappy Sci Fi, but it's Sci Fi. I prefer Sci Fi to action so Trek is my pick.
I mean, Star Trek created the entire Sci Fi universe that so many shows take for granted. Warp/FTL drives, transporters, tractor beams, etc. are all commonplace in Sci Fis that have nothing to do with Trek. And often these Sci Fis don't bother explaining what the warp or FTL drive does, we all just kinda know thanks to decades of Star Trek in our culture. Without Trek every new Sci Fi would waste half the first season trying to explain its little world to us instead of getting into the main plot. That is Trek's legacy.
The few times space opera Sci Fis have tried to make it work without the Trek elements have all been failures. Either you have BSGs that are obviously meant to be contrary to what Trek did (and is therefore influenced by Trek) or you get something like Stargate SG1 when they start the series hopping around space through gates (not Trek) but they end the series with battles of spacecraft that have transporters and warp drives (very Trek). Trek is the language in which all modern Sci Fi is written.