Bevy's creator and project lead here. Feel free to ask me anything!
Currently haalka is and sickle is looking excellent. Really looking forward to the official deal though!
Once those are a bit more stable, I'd like to target a focus system for UI, to enable good keyboard and gamepad menu navigation and to hook up to screen readers.
Factory builder and simulation games are the classic example of "when should you use Bevy". You should absolutely pick Godot right now for games that are more content-focused that need a lot of level design: puzzle games, platformers, walking simulators...