IMO Jed *and* Granny were the stars.Ellie Mae,Jethro and the rest were good but Ellie and Jethro were basically eye candy for the younger guys and gals.IMO Hillbillies lost it when they went color...I best liked the first few seasons,
I can remember many parts where Granny and Jethro were being funny, and not so many with Jed or Ellie may. Jed played more of the straight man and the wise man to the others goofing off.
I would go so far as to say that Raymond Bailey did more comedy scenes than did Buddy Ebsen. I do remember Jed doing some funny scenes, I just don't remember as many of his as I do with Granny and Jethro.