Funny, I'm going to predict the Ferraris ahead of everyone, with then perhaps Mercedes from the 2nd row on, but split by a RedBull. Then again, Melbourne being a street track, it could be well that Mercedes surprise me. I don't think Melbourne is a very good reference anyway, but I somehow smell a bit of trouble for Mercedes and I think Ferrari will simply ace the tires and be off to a very good start. I predict Vettel to just snatch pole ahead of Leclerc, but I don't think he will be far behind. Just a hunch though.
Oh, and I think Hulkenberg will surprise and outqualify Ricciardo.