I like having the option to plug in my phone to my car, and have it just work. I think Apple has mastered this, and android is playing catch-up in some ways.
Android Auto isn’t as appealing to the eyes, and seem a little plain. On the flip side, Apple CarPlay is much more visual. Android Auto runs good, but Apple CarPlay runs better. Sliding through the menu on CarPlay is smooth, unlike feel I get from Android Auto.