I used PureMVC in a prior Flash (not Flex) project. After adjusting to its requirements, it worked well, but I'm left feeling that it was too over-engineered and cumbersome. I noticed that Mate had lots of positive reviews due to its clarity and simplicity, but it is only for Flex projects, not Flash.
Would it be simpler/clearer to just maintain my own separation of MVC without a framework like PureMVC in Flash, or are there any better alternatives to PureMVC?
Edit: The only lightweight contender I found was flashMVC.