What is the best set of programs for creating a flash game?

Question

Apache Flex

I'm programming in JS, I got interested in flash technology, because actionscript also belongs to ECMAScript. I think there will be no special difficulties with it, I have already tried it. But a number of questions arose about creating games in Flash (for example, take a typical Hay Day level farm for iOS):
1. What software is used to create models?
2. What is the best development environment, or is adobe a must?
3. What engines are trending now?
4. Is it possible to import models from Maya, for example?
5. Well, and the final set of tools that you can advise.

Answer 1

flashdevelop environment
for coding
adobe cc for drawing menus
3d engine
I use minko myself, but as3 version is no longer supported, so buy flare3d or be content with away3d Any
modeling software will do, look for conversion methods on websites of specific engines

Answer 2

Intellij IDEA
Starling, Away3D
www.adobe.com/devnet/games/gaming.html