A short while ago, our team had to choose a technology for Wix's flagship product, the html wysiwyg website editor. It is a large single-page application, with complex flows, communication with other iframes and servers, and a lot of user experiences. This product is developed by more than 40 developers. The choices were ReactJS or AngularJS. We had experience with both, and were struggling between the ease-of-use of Angular declarative programming and the simplicity of React. We started a proof of concept that ultimately drove us to form a tie breaker. This article is about the comparison… and the tie breaker.