The biggest advantage that Chalice has over Zappa is related to IAM roles. Chalice has a very cool feature where it will actually inspect your Chalice application for AWS service calls and generate an IAM policy based only upon what the application needs.
I do agree that is a huge win for chalice. I still don't have a clear understanding and rather not fiddle with the IAM stuff if possible.
I just want to go from zero-to-scalable-rest-api with minimal cognitive load from having to switch back and forth different AWS products in the web console.
That is pretty sweet.