If I worked for ABC Family and controlled the schedule this is what it would be:

11AM Full House
12PM Family Matters
1PM Step By Step
2PM Boy Meets World
3PM Sabrina the Teenage Witch
4PM 8 Simple Rules
5PM 7th Heaven
6PM Everwood
7PM Gilmore Girls
8PM Original Shows

I would take Sister Sister out, bring back Everwood and 7th Heaven (7th Heaven plays only on weekends). I would take away double airings of Gilmore Girls and Full House, I don't care how popular those shows are. I would bring Sabrina back from the morning hours to the afternoon hours where it would get better ratings.
By putting Gilmore Girls at 7PM I would not watch it waiting for a better show to come on (like 7th Heaven before they moved it to just weekends). I know GG is a popular show, but I just don't find it something I enjoy.

For ABC Family, I would've done a summer marathon to air during the Memorial Day weekend.  Of course, that marathon would not include Sister Sister and 8 Simple Rules, but since they will appear on the lineup starting June 11, I include them in my Summer Marathon.  The rules are the episodes have to be about vacation type trips, like to beaches or Disney World, not just trips away, like where Carol and Frank in Step by Step always like to go to hotels to get it on and stuff like that.

12:00 PM Full House 3.1 Tanner Island
12:30 PM Full House 6.23 The House Meets the Moust Pt. 1
1:00 PM Full House 6.24 The House Meets the Moust Pt. 2
1:30 PM Family Matters 6.22 We're Going to Disney World Pt. 1
2:00 PM Family Matters 6.23 We're Going to Disney World Pt. 2
2:30 PM Step By Step 2.18 Aloha Pt. 1
3:00 PM Step By Step 2.19 Aloha Pt. 2
3:30 PM Step By Step 5.22 We're Going to Disney World Pt. 1
4:00 PM Step By Step 5.23 We're Going to Disney World Pt. 2
4:30 PM Boy Meets World 3.21 The Happiest Show on Earth
5:00 PM Boy Meets World 7.8 The Honeymooners
5:30 PM Sabrina the Teeage Witch 2.23 Disney World
6:00 PM Sabrina the Teenage Witch 3.25 The Good, the Bad, and the Luau
6:30 PM Sabrina the Teenage Witch 5.17 Beach Blanket Bizarro
7:00 PM Sabrina the Teenage Witch 7.21 What a Witch Wants Pt. 1
7:30 PM Sister Sister 3.9 Thanksgiving in Hawaii Pt. 1
8:00 PM Sister Sister 3.10 Thanksgiving in Hawaii Pt. 2
8:30 PM 8 Simple Rules 1.22 Good Moms Gone Wild

 There is an episode of Sabrina where they go on a trip and Sabrina has to buy Soliel Moon Frye's character a present and SMF's character (I get Morgan and Roxy confused) finds her mom there, but I couldn't find the episode in the list.

I was wondering, what if I was to create a Father's Day Marathon for ABC Family, what would I show?  Well, I was going to use all the sitcoms that air on ABCF, including the two that will be added June 11.  In coming up with episodes that fit the theme of Fathers, I saw a lot of Full House ones, so I decided to create one with just Full House eps as well. Here's the Full House marathon:
1:00 PM 1.1 Our Very First Show
1:30 PM 1.7 Daddy's Home
2:00 PM 3.11 Aftershocks
2:30 PM 4.12 Danny In Charge
3:00 PM 4.21 The Hole-in-the-Wall Gang
3:30 PM 4.25 The Graduates
4:00 PM 5.11 Nicky and/or Alexander
4:30 PM 5.15 Play It Again, Jess
5:00 PM 5.22 The Trouble with Danny
5:30 PM 6.18 Please Don't Touch the Dinosaur
6:00 PM 6.21 Room For One More
6:30 PM 7.4 Tough Love
7:00 PM 7.7 High Anxiety
7:30 PM 7.12 Support Your Local Parents

All the shows:
8:00 AM Full House 4.12 Danny In Charge
8:30 AM Full House 5.11 Nicky and/or Alexander
9:00 AM Full House 5.15 Play It Again, Jess
9:30 AM Full House 7.12 Support Your Local Parents
10:00 AM Family Matters 1.6 Basketball Blues
10:30 AM Family Matters 2.15 Son
11:00 AM Family Matters 4.2 Hot Wheels
11:30 AM Family Matters 4.24 Buds 'n' Buns
12:00 PM Step By Step 1.5 Frank and Son
12:30 PM Step By Step 2.21 The Un-Natural
1:00 PM Step By Step 3.22 Great Expectations
1:30 PM Step By Step 5.13 Beautiful Ladies of Wresting
2:00 PM Boy Meets World 1.3 Father Knows Less
2:30 PM Boy Meets World 4.6 Janitor Dad
3:00 PM Boy Meets World 5.12 Raging Cory
3:30 PM Boy Meets World 6.13 We'll Have a Good Time Then
4:00 PM Boy Meets World 7.3 Angela's Men
4:30 PM Sabrina the Teenage Witch 1.20 Meeting Dad's Girlfriend
5:00 PM Sabrina the Teenage Witch 4.1 No Place Like Home
5:30 PM Grounded For Life 4.1 Your Father Should Know Pt. 1
6:00 PM Grounded For Life 4.2 Your Father Should Know Pt. 2
6:30 PM Sister Sister 2.2 Get a Job
7:00 PM Sister Sister 6.15 Father's Day
7:30 PM 8 Simple Rules 1.1 Pilot
8:00 PM 8 Simple Rules 1.8 By the Book
8:30 PM 8 Simple Rules 1.23 Career Woman

I think that would be cool.  I'd watch.