On season 4, the episode called "A tale of Poes and Fire", among other things Rory is making her pro-con lists for Yale, Princeton, and Harvard. She's torn because her and Lorelai had always talked about going to Harvard and she had Harvard paraphernalia on her wall, but Yale seems to have more pros. Plus there's the added bonus of Yale being much closer to home.
But she's still torn, because Harvard was always a dream, until she comes home and Lorelai has decorated her room in Yale stuff.And then she knows that Yale is the school for her. It may not be what she intended, and it might not be what everyone expects, but she knows that she will be happy with her decision.
More to come ;-)