I'm still working through all the series so take my opinion with a grain of salt.
The original series is still the best. The actors had great on-screen chemistry, the writing was bold, intelligent, and culturally significant, and the episodes are some of the greatest ever filmed -- Balance of Terror, Amok Time, Shore Leave, The Devil in the Dark, etc. Plus TOS gave us The City on the Edge of Forever, the best and most transcendent Trek episode.










