Why do you want to work for us over our competitors?

Your interviewer is curious to what extent you've researched their company and whether you have identified their culture, values, and working environment as a good match. So take time to explore their growth opportunities and paths for career advancement from within that align with your goals. Take note of their keywords and key phrases, and incorporate them into your answers wherever you can do so naturally. This will also help them determine which of their recruitment investments are paying off.