Fresh.

I know this is a little late, i hope it helps those who are doing their JAE.

For those flickering between the choice of Poly or Jc, hear my opinion. Heeding it is secondary.

For those going to Poly, i guess your morals and character will face greater challenge than being in JC. Most probably you might change quite a bit. Seen it in myself and the people around me. Not saying you might turn evil or whatsoever, but the way you look at things, it might turn pretty grey, and you might feel rather individualistic in many things. Due to differences in opinions, fashion, words used to conduct yourself.
And please get to know what is being taught in the course you are considering, you cant get any Cs if you want to go to UNI. For some courses like mass comm, its rather varied. For banking and finance in Ngee Ann, do note you most prob will be learning CSS and some computing in a module, mass comm too.

Whereas for JC, it gives a more friendly and warm feeling. But it can be rather mundane and maybe stressful for most. Time pass fast here, and please please, pray that you land up in the right class. Its not getting a good class, but being in the right one, where your classmates share your interests and perspectives. But be prepared for the stress from PW, and ending school on average like 5? I havent heard any praises from PW, like seriously, not one.
Most says the science people are lacking in culture and are not as exciting or interesting as the Arts. Maybe. Some tell me the Arts has quite a bit of politics in their class. Maybe. To me, just do what you know you are best at. And if you want a bit of both, go for 2 Arts and 2 sciences then. Which is what i will be doing.

I guess do what you are best at, where your confidence lies. And pray that you will not sway away from the road God has called you to.

Hope it helped.