my top 10

1. Benson
2. Mr. Belvedere
3. Barney Miller
4. The Wonder Years
5. Bewitched
6. The Middle
7. Coach
8. Happy Days
9. Boy Meets World
10. Hope and Faith

My Top-16...

1-Home Improvement
2-Family Matters
3-Full House
4-Mr. Belvedere
5-Bewitched
6-F Troop
7-Boy Meets World
8-Happy Days
9-Mork and Mindy
10-Hangin' With Mr. Cooper
11-Welcome Back, Kotter
12-Bosom Buddies
13-Too Close For Comfort
14-Who's The Boss?
15-Taxi
16-Step By Step

I would need a list of all the ABC sitcoms but I know Happy Days and Laverne and Shirley would be on the top of my list.

Only one, IMO: Barney Miller

My top 6

1 Happy Days

2 Three's Company

3 The Brady Bunch

4 Bewitched ,extra credit for Dick York episodes

5 Laverne & Shirley

6.Taxi

My ABC picks: Bewitched, The Brady Bunch, The Partridge Family, The Odd Couple, Happy Days, Laverne & Shirley, Mork & Mindy, Three's Company, Welcome Back Kotter, Benson, Webster, Soap, Full House, Mr. Belvedere, Just the Ten of Us, The Love Boat, Fantasy Island, Charlie's Angels

Add Soap, Webster, Benson and The Odd Couple to the list.

THE ADVENTURES OF OZZIE & HARRIET...!

Not only the most important sitcom in ABC's history, but the one that set the pattern for all networks' family sitcoms for decades. How soon we forget! This was a very significant series that I believe STILL holds the longevity record for a live-action family sitcom.

Thats true. The thing that holds Ozzie and Harriet back, imo, is the fact that they are hardly seen anymore. They were on COZI-TV for a while and I'm not sure if they are still on the air. Also, are all the episodes intact? Thats probably why they are not on anymore. Maybe too many episodes are missing.

My favorites are Bewitched, Leave It To Beaver(2-6), F Troop, The Addams Family, The Brady Bunch, Ozzie and Harriet, My Three Sons(1-5), Nanny and the Professor, Happy Days, The Odd Couple, Batman(Does this count?), The Real McCoys(1-5), The Flintstones.

Batman(Does this count?)

I guess you could call it a comedy in a way, being that it was noted for being incredibly campy, IIRC.

Taxi
Bewitched
My Three Sons
Leave It To Beaver
The Flintstones
The Jetsons
Laverne And Shirley

And my all time favorite.... Happy Days!

In no particular order, these are my top picks for ABC sitcoms:

Leave It to Beaver
Bewitched
That Girl
The Brady Bunch
Laverne & Shirley
Three's Company
Mr. Belvedere
Perfect Strangers
Family Matters
Home Improvement
Step by Step
Hangin' with Mr. Cooper
Roseanne
Grace Under Fire
Boy Meets World
Ellen

My top 5 ABC Sitcoms:

1. Home Improvement

2. Last Man Standing

3. Family Matters

4. According to Jim

5. 8 Simple Rules for dating my teenage daughter

Happy Days
Three's Company
Who's The Boss
Taxi
Benson
Bewitched
The Brady Bunch
The Partridge Family
The Odd Couple
Welcome Back Kotter
Laverne & Shirley
Leave it To Beaver
Mork & Mindy