Why would you get rid of someone who isn't doing anything? I'd keep Sis and Nicole with me until the very end because they aren't going to win anything.
On the other side my strategy would be to lay low blend in get along with everyone and not cause any waves for the first half of the show. Then let beast mode come out.
I'll clarify: as a view and a fan I want her the hell out of the house. As a player, 100% agree.
The problem everyone will be saying "well I don't want waste my HOH on Sis"....and she'll slither her way to the end. You get her up against someone that has burned bridges and its a bitter jury and then you get the worst BB winner of all time.
However, my guess is she'll get voted out after someone wins a veto down the line. Or I see her as the second evict in a double eviction.
Nicole is the sweetest person and knows the game very well. She does sometimes let her heart get in the way. She never should have told Jess about the new deal but she did so because she felt bad. She and Cliff are in a pretty good spot right now playing the middle so depending how the comps go, she has a shot. She needs to get a couple wins though to improve her win equity.