I have to admit to not liking Flex Builder at first – unless of course I wanted to create a Flex application. The whole course of creating a project for everything isn’t difficult, but it formalizes the whole process. Sometimes I just want to get into it and start banging out some quick classes and prototypes. I have secret affairs with document classes to boot (I don’t put anything on the main timeline anywhere importing my classes and instantiating them there.
Flash Builder allows for this kind of thing. I absolutely LOVE this thing.