Which HMVC library do you prefer? Why?

[eluser]nuwanda[/eluser]
So, I violate DRY?

My "helper" model does some very abstract things. Many models can benefit from this.

You see, a model can be seen as an abstraction from the controller itself. Why stop there?

If a further level of abstraction can be wrought that enhances other models, why not use it?

Actually, if you view models as classes, it's like suggesting that (somewhat) one class should not extend another.