It may be obvious coming from me, but I like Android Auto much better than Apple CarPlay. Android Auto seems much polished and totally customized for the Drive mode than the Apple’s counterpart which looks too familiar and more like looking at iPhone 3G!
It is easy to guess from these Screenshots which is what.
Car maker support is all split for now. But I am expecting most of them to support both platforms. After all, they don’t want a $600 product to determine purchase of their $30,000 or more product!