i dont think it makes any difference, because at the end of the day your results are your results.
for example, if you go to a low rank school and get the top internal spot, you will get the top exam mark as 50% of your HSC mark (which will most liekley be yours, coming first and all) and your own exam mark (which is your own mark anyway)
and if you go to high ranked school with a mediocore internal rank, you will get your own exam mark, and whatever percentage of the exam pool you scored internally, (which theoretically should be about the same as your own exam mark)
this paragraph is a bit fluffy, it was hard to phrase, but at the end of the day, your marks are your marks
your actual school rank has NOTHING to do with anything, it just "might" help you judge abit where you are in relation to the rest of the state