I also live in Melbourne and thinks it's the best place in the world. I have travelled a fair bit around the world and the only other place I would even entertain living is NYC. Awesome place that never stops.
I also lived in Perth for a year while growing up and that was great but nothing compares to home. It's not the beaches, the footy, the girls or the transport. The greatest place in the world is where your family and friends are. Being able to combine footy, family and friends is even better.