If you use windows a lot and like the idea of taking notes with a stylus then go for the surface pro 3. This is also good if you want a portable machine which is fairly powerful. But if you travel a lot from uni and need a lot of battery life and use all the apps in mac os and don't use windows that much then the mac wins. It has the better keyboard and battery life. If its worth waiting for the retina version is up to you. It will have better image quality but I don't think it will be a great improvement.