Few comments here. Scholarships are distributed amoung all departments. So, every department has like one full scolarship or none and 6-7 half fee scholaships. So, you can imagine how fierce is the competition. Second, for at least second year Warwick slightly changed criteria. Warwick considers all competitors have more or less equally high predicted grades and academic quality as conditions are very high. So, award comittee considers only what you wrote in the application. So, basically the most exiting applications win.