Dont think of joining SIA so easily, or by using rsaf as a
stepping stone. Its many many many years of ur life u have to give
to the air force before your contract even expires, so I think that
if u go in thinking abt SIA half the time, might as well not join
rsaf right? Just go join SIA straight once u reach 26.
Anyway, if u wanna be a pilot next time, no difference as to
whether u poly or jc. However, a university degree is almost always
a requirement for SIA. For the air force, they do take in people
with just a plain poly diploma or A Level cert, but then do take
note that u will forever be one of the people down at the bottom of
the chain if u go in without a degree. Dont make urself so
disadvantaged.
Let me just give u advice from a JC point of view. If u like to
study, or have no idea what kind of course u want to do in poly
(like me), then choose JC. But remember that the JC route is much
more academic-intensive. If u are the type who cannot study one,
then die die also dont come jc. Go poly instead. Poly route spans 3
yrs, but overall if ur goal is to go university, then both routes
would result in the same number of years studied. So doesnt matter
either way. Go the route that suits u most that can allow u to go
university.
However, if u dont fall into the study person type, or even the
type who can survive well in poly, then my advice is to just go
poly. Cos the fact of life is that a poly grad will always earn
more than an A Level grad without degree. The poly grad would be
armed with skills that can get him a better pay grade. Hope this
helps.