None of them? There is absolutely no question that these vendors tried some novel things that were later integrated within Android.
And if we need to talk about experience, I started with a G1 on Android 1.0, then G2, HTC Hero, Galaxy Nexus, Galaxy Glide, GS2, Nexus 4, GS3, Nexus 5, one other HTC that I can't remember the name of, Nexus 6p, GS8. I've tried a lot of devices, and I've rocked them all.
And through those with unique vendor additions, it was always a mix of ups and downs, and later to see many of those innovations being swept into the Android base.
I also question any claim that Android is "without frills, without skins". Android is 98% frills. With each iteration we have a new laundry list of frills. At the same time the core OS took until about version 7 to finally get basics like smooth scrolling down (something that vendor skins got to a much better state much earlier).
And if we need to talk about experience, I started with a G1 on Android 1.0, then G2, HTC Hero, Galaxy Nexus, Galaxy Glide, GS2, Nexus 4, GS3, Nexus 5, one other HTC that I can't remember the name of, Nexus 6p, GS8. I've tried a lot of devices, and I've rocked them all.
And through those with unique vendor additions, it was always a mix of ups and downs, and later to see many of those innovations being swept into the Android base.
I also question any claim that Android is "without frills, without skins". Android is 98% frills. With each iteration we have a new laundry list of frills. At the same time the core OS took until about version 7 to finally get basics like smooth scrolling down (something that vendor skins got to a much better state much earlier).