Darvond: Now, I've not handled many controllers in my time. So the most complicated thing I've beheld and held for actual use is a Logitech Wingman 3D Pro Extreme. Or something along that order. It's a perfectly ordinary flight joystick. It twists, it goes all about, and has several buttons for functions I'd typically have no use for.
https://www.logitechg.com/en-roeu/products/gamepads/extreme-3d-pro-joystick.html That's... a pretty normal flightstick, isn't it? Two buttons on the top + a trigger, a bunch of buttons on the base, a throttle lever on the base, and it twists too.
I have two similar joysticks myself, Microsoft Sidewinder Precision Pro 2 something something, and a newer Thrustmaster T.16000M. They seem to have pretty much the same functionality as that Logitech stick, but cost somewhat more (which I hope also means they are of higher quality and last longer).
I don't know why you consider that "complicated". I consider normal PS/PS4 or XBox360/One gamepad more complicated.
Now, the most complicated gaming controller I've used is the HOTAS flightstick + throttle system I bought back when Falcon 3.0c was a thing. I wanted the experience to be as close to "reality" as possible... but I just found trying to use that HOTAS system too complicated, especially since even though I had my both hands on the stick and throttle, I still had to access the keyboard all the time, making it less useful. So in the end I stopped using that throttle component and just used the stick with the keyboard.
Another controller I bought but didn't use at all was a steering wheel + pedals. I bought for games like Grand Prix Legends and Gran Turismo. The selling point indeed was that you could use it both with PC and Playstation (possibly also PS2) with adapters... but in the end I never used it. It just felt too much work setting it up just to play some damn driving game, meh. And it took too much desk space.
