I would appreciate seeing how people rank these comic actresses in these shows. Please consider only how they handle the comedy, ignoring other factors such as appearance, iconic-ness, etc. Restrict the ranking to what was done on these shows, but if they played multiple roles on a show then include work in all of the roles:

Yvonne De Carlo: The Munsters
Barbara Eden: I Dream of Jeannie
Barbara Feldon: Get Smart
Eva Gabor: Green Acres
Carolyn Jones: Addams Family
Elizabeth Montgomery: Bewitched
Mary Tyler Moore: Dick van Dyke Show
Marlo Thomas: That Girl

Feel free to throw in others from the era, if you like.

1. Irene Ryan
2. Bea Benaderet
3. Eva Gabor
4. Marlo Thomas
5. Carolyn Jones
6. Elizabeth Montgomery
7. Yvonne De Carlo
8. Barbara Eden
9. Mary Tyler Moore
10. Barbara Feldon

I added Irene Ryan & Bea Benaderet because they're my favorite sitcom actresses from the 60s.

Mary Tyler Moore
Frances Bavier
Elizabeth Montgomery
Betty Lynn
Irene Ryan
Charlotte Rae - Car 54
Ann Morgan Gilbert
Yvonne De Carlo
Barbara Feldon
Tina Louise
Nancy Kulp
Barbara Billingsley
Dawn Wells
Marlo Thomas
Carolyn Jones
Eva Gabor
Barbara Eden