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.