I have three slow cookers, too. I use my five qt. for big stuff, it would easily cook a whole chicken. Mostly I use it to take stuff to church for our potlucks, like a potful of meatballs.
I have a three qt. for this and that, cooking meals for DH and I, etc..
I have a mini slow cooker for heating up stuff like soups.
I looooooooove my slow cookers as I have never been a fan of standing over a hot stove cooking something. I can stick stuff in the cooker, turn it on, and forget about it until we are ready to eat.
Breast Cancer Survivor
86 years old