This document contains the slides from a presentation given by Tony Hillerson on comparing different Flex frameworks. It discusses the characteristics and pros and cons of the Cairngorm, PureMVC, Swiz and Mate frameworks. Each framework is assigned a superhero identity: Cairngorm is Mr. Fantastic for its flexibility, PureMVC is Doc Ock for its many "arms", Swiz is Wolverine for its pragmatism, and Mate is Batman for its many tools. The presentation compares the frameworks on factors like inversion of control, use of events, configuration and testability. It concludes by thanking the audience and providing links to resources from the presenter.