Regular readers will know that I've compared a couple of policies across the Labor, Liberal and Greens parties as we approach the election. This is clearly a popular pasttime. The ABC has done something similar, but without the value judgements, and mostly without the Greens. They have a page which serves as a launching point for you to make your own comparisons. The section headings operate like search tags, though, and will take you to stories about those issues.
Nevertheless, you can learn a lot from these links. Our national broadcaster has done a lot of work for you by bringing together the stories about the election. You should look through it before you vote. Make your vote a deliberate and informed choice.