I'm in New Zealand too. (I know, wasn't this left on page 2? Meh?)
I think NCEA has serious issues. However, I realise a lot of people don't have too much of a choice, and it doesn't matter if you get University Entrance.
In New Zealand, just fyi for you Americans, you just need to reach a certain amount of points (really easy, straight C's will pass I think), but some courses (Law, Engineering, etc) require more points, or specific subjects (ie. Engineering at University of Auckland you need Math and Physics). So it isn't like the USA with your Ivy League stuff.
I am lucky that I go to (not wanting to start an argument) one of the best/the best school in the country (we had 2 scholars in the 7 Premier scholars last year, unheard of) and the top 1/3 do CIE exams. Thank you UK! If you are really oblivious/ignorant, they just have a percentage and an A*, A, B, C etc.
I'm in my second year at High School (4th form, year 10) and have had pretty much all A's (except Geography, which I will drop next year).
When I leave school I'll get (hopefully) a masters in engineering (civil or electrical).
Honestly, though, this talk of the American system intimidates me lol. Auckland Uni is the best in NZ for Engineering (like 50-somethingth in the world) and I'm happy with that. I dunno about America, but in New Zealand, you employ people on past experience usually. Not on what particular Uni they went to.
Good luck to you all though, I'd want to go to an Ivy League college if I could, but our family could never afford it without a 100% scholarship (yeah right). I'm happy though, I'm 8th in a year of 450 kids, and I should get into the accelerate course (cuts it to 3 years instead of 4).
So yeah. I understand where you are coming from, but the whole Ivy League, GPA and all that goes over my head lol. I'm sure someone from the UK understands.
PS. First post, lurked for ages though.
EDIT: Oh, and BTW! Next year I do IGCSE (I know, just shut up lol) and I'm doing Physics, Chem, History, Economics, and Math/English are compulsary.