<p>Honestly, you want to get the recommendation from the person who knows you and has the most personal interest in you. You want recommendations from people who actually care whether or not you make it into the school, and aren’t just going to write a paragraph about your academic strengths, but rather illustrate both your academic talents and your character. So choose the one you’re on the best terms with. If it turns out to be the one who’s not sponsoring your masterwork, then have that teacher mention that you’re doing one in their rec.</p>