What are the next generation of unabashedly romantic stories that deserve to be one day remembered as classics?

By classics I mean stories that are either very well written, or capture the essence of their time, or are wildly popular. Past classics for me include Pride and Prejudice, Emma, Jane Eyre, Wuthering Heights, An Ideal Husband, The Age of Innocence, Gone With the Wind and Anne of Green Gables.

So which works belong to the next generation?