Yeah, the funny thing about Alicia is that Kim totally played her last season. Not only did Kim control her vote after the merge, but she was able to take advantage of Alicia's ego and manupulate her into thinking she was controlling things, right up until she was voted out. Even after she was voted out, she still thought of herself as some sort of mastermind. If Pete could pull something like that off with Abi and possibly take her to the end, I probably wouldn't like it, but it wouldn't be a bad plan, I doubt she'd get any votes.
But yeah, I agree, regardless of whether it's a good idea, if Abi and Pete really want to vote out RC or Mike, wouldn't it best to try and lull them into a false sense of security rather than make RC start scrambling.