Symphony.

In developing 'stuff' for Symphony, I have come across different ways of doing content pages, and I would like some advice on which is considered best practice.

Some extensions do all the work of the pages in one content.{name}.php file while others break them up...

content.index.php
content.edit.php
content.{name}.php

Which is the recommended way to do it all? I also found that the functions in these methods are named differently too.

I ask as I want to get it right for 'future proofing' the extensions I'm developing, and for the upcoming 'best practices' and coding guidelines that are on the table for developing.