After interviewing your architectural candidates, hire one based on character. Know that the connection between client and architect could be a relationship of many years. I am blessed with repeat clients that appear to like me, as well as find me qualified as their design expert. Such relationships last more than just a few years; they can last a lifetime.
You will want to hire an architect that you actually enjoy being in his/her company, that you will be excited to come to their office each week to see the latest ideas—and to converse not just about your project, but perhaps, a recent weekend of skiing.