The thing is, any comparison is unfair, because while the OT is a fairly unified planetary romance/ science fantasy kinda thing, there's never been one Star Trek.
Even Star Trek TOS varied widely between smart Sci-Fi, (The Cage), light comedy (Trelain, Tribbles), social parables good and bad (Frank Gorshim and Space Hippies), stupidly bad sci-fi (Spocks Brain), aliens that convieniently look like Nazis or Gangsters (Coms and Yanks even) and always a heaping of punch punch punch.