That's a great question I should answer in depth in the library docs @david.bilik !
It's smaller because no need to subclass the Views for View DSL usage.
It's smaller because it's split, so no unneeded dependencies. You only pick what you need.
It's smaller because the View DSL lambdas are all inline, versus non inline in Anko
It's way more easily extensible in regards to View DSL as no subclassing boilerplate needed.
It's more active than Anko, I work hard on this project to deliver extensions you are very likely to need in an Android project
View DSL IDE preview doesn't need any IDE plugin that can break after each new release of Android Studio
It's smaller overall, all the modules are in total about 2K methods, counting the inline methods that Proguard will remove on release builds (you enable proguard on release builds, right?)