The definitive nus courses i have taken tier list - rank, compare, and debate the best and worst nus courses i have taken. Place each item from S (GOATed) to D (bottom tier) and share your nus courses i have taken rankings. Made for fans who love ranking nus courses i have taken, this tier list maker is free, easy to use, and perfect for settling debates on TierBuddy. Popular categories include education, universities, college-courses, college-majors.