openhab-android is already using Gradle 
I don’t know the advantages/disadvantages of each build system, but the main goal should be the development experience.
Right now Eclipse has infinity loop error. Personally, I’ve tried setting everything up 3 times, but I gave up.
It is extremely hard to start with binding development.
The main goal should be: how to allow new users (like me) to start development in the easiest way.
Ideally user should clone repo, open project in IDE (user preffered) and just start development.
I don’t have nothing against Eclipse, but it is so terrible slow. Why not go with VS Code?
@David_Graeff do You think it would be worth to migrate to Gradle right now? Maybe with OH3?