If they were side by side we'd pick Boma becasue of more selections, but we like Tusker House so much it usually comes down to convenience for us. We usually stay at Beach Club, and Animal Kingdom Park is usually a 'destination' we enjoy more than trying to get to AK Lodge just for a dinner.
You have a win/win regardless, so that's why we try and go to both. They are at the top of our list!
Hope you all are enjoying your weekend!