I would say that it would have to be Karen Roe, which is Lucas's mum in One Tree Hill. She is an amazing loving mother who I would love to have as a mum. Shes strict yet she gives you the freedom that you want.
Hmm... Very close. It would be between Lynetter Scarvo (from Desperate Housewives) or Nora Holden (from Brothers & Sisters) both of the characters are played very well and they do anything for their children, its a good example of an almost perfect mum.