The simple truth is this is a comparison between a group of cars that are all very good cars. As an EV they’re all smooth and easy to drive, as long as the driver doesn’t make it different. The least best of the bunch is down to a few materials and the feeling of being surrounded by quality (or lack of), fundamentally the whole VW group offerings have the same underpinnings, battery and motors, the same can be said for the EV6 and Ioniq 5 & 6, then there’s the Mustang out on its own and the Ariya and Megane sharing the base design.
The main points of difference are how well they’ve been put together and what equipment has been included plus the odd battery difference. If your list of equipment needs is short, then you’re going to have a busy few weeks test driving some very nice cars. The choice is down to personal preferences like looks, seat comfort and how you feel driving it. We can’t answer how you respond to those factors, just how we do and that is inevitably different to others.
I'm Autistic, if I say something you find offensive, please let me know, I can guarantee it was unintentional.
I'll try to give my honest opinion but am always open to learning.
Mark