I think the best parents would be Amelia and Doppler from treasure planet coz they both can provide their children well and Cinta them so much (picture below) I don't think Hercules and Meg would make a good parents becuase Meg is a bit too proud and Hercules may squish the baby :)
I think that almost all of Disney's couples would be good parents. If I had to choose a couple that I would Cinta the most with kids & have the most endearing story, it would be meg and Hercules. Meg'd be all like, "what do I do? I suck at this!" But they'd get the hang of it. It would be so cute. I think belle is a little too spacey to be a great, playful mom.