I've purchased Adobe CC and started installing applications in Spanish (my OS language, Windows 7 SP1). AE installed in Spanish and after that I realized the language tab in Creative Cloud > Preferences > Apps. I changed it to English (the language I prefer in my apps) and continued installing apps. The rest of them, like Photoshop and Illustrator, got installed in English.
I want to use AE in English, but I can't see a way to select the language I want.