I was always forced to watch chick flicks growing up (household filled with women while Dad was in navy) and a film that I actually liked that I hope will be released on Bluray is "Somewhere in Time" with Christopher Reeve and Jane Seymour. Pretty much all the ladies in my household considered this movie the end all beat all romantic chick flick and was actually pretty good.
"The Notebook" is my GF's choice of best chick flick, it was okay but she sure goes ga-ga over that one (and it is on Bluray)
My choice would be "Nine" with Daniel Day Lewis, story is told from the perspective of a womanizer director of the 60's but the music in it is so good it was hard to say anything about this chick flick. Also stars Kate Hudson, Fergie, Penelope Cruz and Nicole Kidman, just a great story and great music. GF rented this one and I wanted to hate this one, but the music just took me right in (that and seeing Penelope Cruz in lingerie singing around a pole was great eye candy) but it is a chick flick and on Blu.