Should we treat our children equally or give more to the one that needs the most?

I have heard a lot of parents struggling with this dilemma. Is it better to treat all our children the same, or help the ones that need help more than the ones that don’t. One case scenario – suppose you have a child that went to school and worked hard at it, got herself into college, made good choices and took care of business, so is in a good place financially. Another was a problem child, skipped school, goofed off and now barely making it. If you came into some extra cash, would you give them equal shares or give the needier one more? Isn’t that demeaning to the child that worked hard and rewarding the other’s mistakes?