I think it's easier to predict who will be safe - which is only Louis.
Lisa's got the public support, but if she's bottom of the leaderboard (which I have no doubt she will be), then she'll need to top the votes to stand a chance of not being in the bottom two.
Leaderboard position is important and I can't quite tell where the other girls are going to place tonight which makes it tricky to predict who will be in danger.