Cambridge and Oxford have amazing libraries; they are basically
entitled to every book ever printed in the UK.
Oxbridge is very good for history and all other traditional
subjects.
In the better UK universities, you can't do law and history. You
either do law OR history. The closest you can get to that is the
Cambridge Tripos, but it's conditional upon you being able to
switch subject.
Durham is definitely good for law, but it doesn't hold the same
prestige at the Oxbridge/London universites, especially in Magic
Circle firms. That said, if you choose to apply to Durham, apply to
University College - you get to live in a castle! 
Why do you think the best place to study law is NUS Law? Will NUS
Law give you leverage outside Southeast Asia? NUS is a great place
to study law, but it isn't the best.
