When comparing AIDA/web vs Actix, the Slant community recommends Actix for most people. In the question“What are the best backend web frameworks?” Actix is ranked 19th while AIDA/web is ranked 50th.
Ranked in these QuestionsQuestion Ranking
Pro Conceptually simple, yet complete
Most frameworks seem to tend towards conceptually simple, but also stripped down (such as Python's Flask), or go the other way and be very fully featured, yet complex. AIDA/web, however, manages to give a programmer a lot of expressive power, while remaining conceptually simple -- an afternoon will get you building websites, and you'll feel comfortable with AIDA/web in just a week or so.
Program your web app in Smalltalk, an enjoyable and easy language to use. Smalltalk was the language to inspire modern Object-Oriented programming and pioneered many of the programming concepts used today, such as MVC.
Pro Blazingly fast
Forget about stringly typed objects, from request to response, everything has types
Actix provides a lot of features out of box. WebSockets, HTTP/2, pipelining etc
Easily create your own libraries that any Actix application can use
Con Relatively inactive