Least useful in terms of the actual curriculum. At most schools, even (or perhaps especially) top ranked ones like Yale, the classes trace the substantive devel

Least useful in terms of the actual curriculum. At most schools, even (or perhaps especially) top ranked ones like Yale, the classes trace the substantive development of law by reading appeals court opinions. That's a fun intellectual exercise, but you don't get much hands on experience working with real contracts or writing pleadings unless you do a clinic or an internship.