I have the same question. I am amking a similar site, lol. Anyways i ahve decided on using drupal because of security reasons. I was going to use wordpress because of its extensive plugin database. Which just makes me build just a small portion of website(codewise). Drupal am pretty new, dnt know wat m gnna do. Dnt have ne expirience wid expression engine though.

Hope someone else can shed a bit more light on d matter, so both o us can choose a good platform.