As far as game plans go, I think she's got the strongest, most subtle one. She does the cooking and the cleaning and everyone likes her. And she has everyone falling in love with her, which guarantees her air time.
Lisa's always going on about how Freddie has a gameplan, but honestly, if she weren't ganging up on him all the time, I'm not sure he'd have a gameplan.
The only other gameplan I see is the vote for Freddie, just because it's the obvious thing to do. I don't think Noirin voted for Freddie because she doesn't like him. It's a strategic vote because she knows it's likely he'll get nominated.
So I can respect Noirin for actually having a gameplan. I think it will get her far. But the public sees through her plans, and that's why I don't think she'll win.