What's your favorite CI Auth plugin

[eluser]Vheissu[/eluser]
Ion Auth is pretty good, I've used it for a few projects of mine. I'm in the process of developing a driver based authentication library for Codeigniter that uses Codeigniter drivers. The plan is to have a couple of drivers (session driver and a Facebook driver). I'm planning on writing lots more including; Twitter, LinkedIn and Google - more will follow suit.

The link to the current uncompleted version is in my signature. WolfAuth.