Now thats all wrapped up, I'd have to say my placings of each season are as follows:
1. BB01 - Original and the best. Has my fave housemate of all time Sara-Marie. Everything about the show was fresh and innovative.
2. BB03 - Kicked off with a brilliant twist and there was rarely a dull moment from then on. The housemates were amazing and there was the best final 2 ever. First time my fave won as well.
3. BB05 - Although it suffered from the loss of such great characters of Constance, Nelson, Angela etc. so early on, it was still a great series. Especially loved Vesna. The end result was pretty poo though.
4. BB08 - I got really involved this year and have really enjoyed it. Although there were a few patchy areas, e.g. new hosts, ever changing voting etc. it was still a very good series.
5. BB02 - Although a great series, the fact the half the episodes are missing and that the ones that aren't are such dismal quality has depressed me enough to place it here. Maybe if I got to watch it all properly the ranking will change, because it looks like a really decent series.
6. BB04 - Did have some great housemates and some very memorable moments e.g. the Merlin incident and Bree being falsely evicted. However, there are some parts which are quite dull. I can still remember that brilliant music video they did though

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http://uk.youtube.com/watch?v=x1wjA7xWf0M)
7. BB07 - My first AUSBB, the first time around watching it was brilliant and I still think it is. It just doesn't look as good when compared to the other series. However, the final 2 were great.
8. BB06 - When I watched it, I just didn't feel as involved in it as the other seasons. There was something about it that made me feel less compelled to watch. Plus the ending was absolutely awful. Worst winner ever!