Please get
rid of this common misconception: Having more people in a cohort
does NOT mean the bell curve will be less steep. It does not make
sense. It all depends on how hardworking and smart the people
comprising the cohort are, which unfortunately cannot be gauged
until you are actually IN the course and find out where you
stand.
If the cohort
size is too small (not sure about the exact figure), then the
distribution will be too weird such that there will NOT be a bell
curve. If that is the case, then it all depends on the level of
difficulty of the papers set because now grading will be based on
your absolute scores, and if need be, a cohort-wide moderation will
be implemented if everyone screwed up. This means it is possible
for everyone to score A, and everyone also can get F.
In my opinion, NUS is more recognised than NTU. But it is easier
to do better in NTU in terms of grades. But what I suggest is you
focus more on studying hard, making friends, and exposing yourself
to various school activities. In general, focus on improving
yourself. Grades will come after that.