I suspect that the voting this year will resemble the see-saw voting seen on the last series of Pop Idol (and American Idol 3 for that matter). Some acts would appear in the bottom 2 one week and then, having squeaked through and their fans motivated by the near miss, the next week they would be nowhere near the bottom of the pile, no matter what their performance.
My prediction: VWS will manage to avoid the bottom rungs next week, also Verity (despite another predicted awful vocal performance) will be safe as her fans interpret the visual of her in ‘Bottom 3’ to mean she’s at risk. In fact, Verity is already safe, and was probably close to the top half of the table. The appearance of risk is enough to ensure her fans redouble their efforts next week. On the other hand, Tabby and Cassie who appeared to be the first 2 acts safe this week will suffer because of apathetic fan voting, along with 2 to Go. I suspect that, despite the polls on this board, Verity and Steve are gathering much larger voting figures than some of the others.
So, bottom 2 will probably be 2 To Go and Cassie. And yet again, Simon has the deciding vote. However, it would NOT be good TV to have Sharon lose 2 acts in a row, so 2 To Go are likely to be the sacrificial lambs this time round. Cassie gets though and, as before, benefits from the Bouncing Vote Syndrome. Looking ahead to Week 3, VWS will find themselves in bottom 2 territory again along with Verity. Sharon uses her swing vote to rid us of Verity in revenge for the loss of Roberta. This pattern continues until there are few enough acts that the public have actually picked just one to support and the voting becomes more predictable (i.e. Rowetta and G4 safe each week, with the remaining acts fighting it out at the bottom).