Which is best for ACL?

[eluser]Monotoba[/eluser]
I looked at the ZendACL and I like what I see. The only issue I have in using it is that it would require loading other Zend framework libraries that replicate CI functionality i.e. the database library would be needed and so my application would need to load both CI and Zend dbi's. I guess I could build an interface between the CI dbi and ZendACL/Auth libs. Zend does offer fine control over access to assets (resources)...