I think in years gone by unpredictability could defeat Melbourne. I can't see it this year though. They've become a team that can Adlib with the best of them, but they're also very good at picking their moments. As a neutral they've (begrudgingly from me) become a very good team to watch play.
Hard to imagine anything other than a Melbourne victory tonight. Massive pressure considering their favoritism, but they're in their bubble down there away from the Sydney media, and their key players seem to thrive on pressure anyway.