For obvious reasons, watching Romeo and Juliet in a classroom full of teenagers is not the same as watching the films in the comfort of your own home.
I thought that I preferred the 1996 Luhrmann version over the 1968 Zeffirelli, but the Zeffirelli version has really grown on me. How perfect is Olivia Hussey's face? She looks like a porcelain doll.
But then again, nothing beats Leonardo di Caprio. :)