I wouldnt put it past the producers to add another twist to the selection process by telling the women that they cant choose anyone that they have already roomed with. That would make things a little more difficult.
If the men really want Amanda out all they have to do is convince the last girl to choose to stand by which ever man Amanda chooses then the choice is clear bye bye Amanda .. I have a feeling that lack luster Kristin might go home - no one really likes her or is attached to her. They might also send Toni packing because while Toni is a "great person" and the "house mother" the men dont seem to be attracted to her sexually (and if you ask me she is way too aggressive-that turns alot of guys off) There are reasons for all of them to go I think the only ones I am comfortable saying will still be there at the end of the day are Amy and Charla.