actually the 'collision avoidance systems' main differences are how they gather data. and in how effective (break through the drivers stupor) they notify you or take over. graphical presentation means little if you are upside down in a ditch. or the engine is sitting in your lap. unlikely any screen message will allow you to react in time to the worst problems.
some are 'all camera' (Subaru), if you can't see it, the system can't either.
some combine radar and camera (Honda)......so cover more circumstances....and weather conditions.
some only flash warning lights, some wiggle the wheel to alert you....or steer you back into your lane. some stop the car, some stop the car in reverse.
there are lots of choices and methods.
personally for myself I don't care for any of it.....at this moment in time. I prefer a car to allow me to keep a watch. I don't want my cruise control to slow down unless I want to.....or the wheel to wiggle.
OTOH for my wife or daughter I want them to have every toy or whistle. and in a few years maybe me too. but not now.