Because someone has to, and as much as we'd all love it to be, that person is apparently not forum shining light DrunkNancy.
Heading into this ranking, I'm well aware BB Australia is pretty much a lesser imitation of BBUK, to the point the house-and-garden-and-other-set-pieces compound may as well actually be called the Inferiority Complex, so naturally I will be trying to compare each housemate with a bunch of BBUK equivalents and so forth to help flesh out the situation for the unaware. You're welcome, people with discerning taste in Big Brother franchises. (Disclaimer in advance: While I'm catching up pretty quickly, I have not seen every BBUK season yet, and there may occasionally be better alternatives than those I give.)
Just so we're all on the same page: (1) I'm only including people if they entered the compound with a chance to win, so basically the White Room rejects will be included, but the BB2 intruder house rejects won't, and neither will the various living and robotic pet dogs housemates have thrust upon them, or cameo stars like Pamela Anderson or The Wiggles and so forth; (2) I will be including the celebrity housemates, though Sara-Marie will get one entry instead of two; (3) The two-people-as-one-housemate pairs will be given a shared entry rather than having to list both partners separately, (4) If and when the next season airs before I finish the ranking, I'll finish the full ranking before doubling back to add the new housemates, and (5) I'll be giving hints too, but I'm not bothering with spoiler tags since we all read and comment on them anyway.
As with the rankings already given by my delightful predecessors JSL and QuaWa, I'm well aware that there are going to be rankings you strongly disagree with, and rankings you wouldn't care about even if you'd seen every BBAU episode. But luckily any extended discussion of Big Brother Australia would be nothing without deus ex bitchina, so let us all try and find some common ground as we take the piss out of this cafailcade of losers, also-rans, and approximately two genuinely likeable people, shall we? I'll wait for you to refill your bong and so forth, and then we'll start on Monday. In the meantime, feel free to speculate wildly so we can give QuaWa back his thread.
Clue for #194: First and last.