Firstly I would like to say that if Airport CEO was fixed - it would definitely be the better game…
However, Airport CEO is unplayable for me. There are just waaaay too many bugs and issues. The experience of playing is that of managing and working around bugs and issues.
The game itself if light on real challenges - It’s actually straightforward to build a profitable airport - the challenge comes in when your designs meet the reality that the game doesn’t work.
Ramp agent cars don’t arrive on time or leave too early? Let them walk - hire a shitload of them who cares you are loaded.
Busses getting all crowded - design a road layout that anticipates how bad vehicles are at driving - perhaps put vehicle depots everywhere - one per vehicle ideally so they never get deadlocked at the entrance.
… etc etc.
Basically this game is not an airport management game - it’s a bug management game.
SimAirport has fewer features and has less potential as a concept - but is much more reliable, less frustrating, and I spend my time managing the airport not the clusterfuck of bugs and things that don’t work.
So my recommendation, take it or leave it, is that you stop implementing any new features until the base game works. It would be really great if it worked.
TL;DR - This game doesn’t need more features it needs fewer bugs.