I have a 2017 rubicon. I spend over an hour yesterday going over the JL from top to bottom front to back.
I would never in a million years pick the JK over the JL. I am not sad I have the JK though, I wheeled it and scratched it first 500km not sure I could with the JL, it's so purdy! Everything about it is better, from the engine compartment to the roll cage to the license plate on bumper to the new transmission (especially the gear layout and how to get into reverse) to all the buttons, even the headlights are moved from the multifunction signal switch yay to the dash. It's really overwhelming what they did for the JL. It's much quieter too with the one piece windshield frame and other improvements ... comes with bfg at k02 now which I only like in the snow...
anyway go spend some time with both vehicles.