Which University in NZ is best to pursue Postgraduate studies in Computer Science in NZ?
Depends what you are studying. Auckland Uni and Otago Uni are generally considerd the best, with Victoria and Waikato Uni as second best.
Which university is best for engineering and medical sciences?
Better to add this as a separate question to get wider audience.
I would say University of Auckland for both, however Otago Uni is big for Medical.
All NZ Universities are good for undergraduate and postgraduate qualifications. However, they have different philosophy for teaching and learning. NZ education system never work on ‘good’ or ‘bad’ way. There is no competition among universities. In fact universities are collaborating with each other. There are 10+ factors each student has to consider for choosing a right university. I would suggest to book a session with Career Adviser to get a customize advice.