Which is best for ACL?

[eluser]Rick Jolly[/eluser]
Check out the Zend Framework ACL. Even if you don't use it, you might get some ideas. Although, it is easy to integrate into CI.

It looks to me that you have roles (admin roles and clan roles) and resources (application, fixtures). The Zend ACL covers roles and allows you to easily assign resources to those roles. You'll find that the Zend ACL's use of inheritance greatly simplifies authorization.