Looking for a Secure Login library

[eluser]chefnelone[/eluser]
I'd say, which one of this library should I choose:

* Tank Auth
* DX Auth
* FreakAuth Light
* Redux
* SimpleLoginSecure

It's for a small site which has a user login sistem to access to a private where the user can download important documents and a admin login sistem to allow the adminitrator manage those documents.

Or should I create my own (and smaller) class?