Men are from Tralfamadore. Women are from Sussex.

Grauniad-UK

A tale of two genders: men choose novels of alienation, while women go for passion

The novel that means most to men is about indifference, alienation and lack of emotional responses. That which means most to women is about deeply held feelings, a struggle to overcome circumstances and passion, research by the University of London has found...

Kewl. Slaughterhouse 5, Cat's Cradle and Catch 22 got me thru 10th grade. Them and Elvis Costello. Check out the article, there's some surprising details and twenty or so other titles. And, balancing the hormonal continuum, here's last year's Guardian survey of the grrls.