I run a small game development studio and we recently decided to launch Android first. It has proved to be a great decision. There are a number of publishing advantages on Google Play that have helped us iterate and communicate with our players that don't exist on the App Store. For example, build deployment speed, the ability to respond directly and publicly to user reviews, and so on.

Obviously our game and their messaging software are very different but I was compelled to comment to offer a counterpoint since the post title is so emphatic.