Is it bad practice/design to nest components inside components using Flex 4? Should I simply be creating components and inserting them into my main application as below, or doesn't it matter?
<com:MyComp3> <s:Label text="This is a test."/>
It all depends. Knowing nothing about the components, all I can say is that it depends on the complexity of the components individually and collectively as well as what level of reuse you may desire.