If you google this question, you will get number of websites telling different ranking of Law colleges. Top 4-5 colleges undoubtedly are best according to them, but rest are paid advertisements for a better ranking, I personally believe.
Things you should see before choosing a University
Industry Reputation
Reputation amongst Foreign Law Schools
Academic Standards / Quality of Faculty
Recruitment Statistics
Location
Student Community / Campus Life
Hostel Quality
IT Infrastructure / Library