JCR vs relational database + Hibernate

[danisevsky]

Hallo, I am thinking about learning and using Jackrabbit instead of (or
with) relational database (+ Hibernate) in my new web application. I would
like to store some data to JCR (on filesystem) and some data to database.
But question is for which kind of data si better JCR. My opinion is that
data like photos, blogs, comments is better storage JCR and data like users,
roles, classifiers is better database.
What do you think, is it right?
Thanks