I've used both Grails and JHipster, and I use Grails mainly because I like the Groovy language and plug-in architecture. I have recently been refactoring Grails to become Spring Boot Plus, eliminating the gap between Grails and Spring Boot. Provide easy to use CLI, easier and faster to create different types of projects, built-in dynamic modular plug-ins, security framework, task scheduling, web sockets and database management and administrator console.