I love the challenges that involve eating or guessing calories and would love to see more of those.
Just because the ratings are high does not mean that viewers love this show. Many watch on their DVR so they can use FF and not just for commercials. I don't think they seek feedback to improve this show. The same complaints are everywhere.
Bring on the drama for me! I love the evil Conda and Kim vs arrogant Adrian. I like to see the trainers irritated with a contestant as much as bond and love another. It gives the show some substance. Learning social skills and conflict resolution is crucial for a happy life, too.
I would like to see a larger sum of prize money so the game playing aspect is heightened. I doubt this will happen because this show views itself as instrumental in conquering obesity. It is discouraing for many who believe you have to work out this hard to lose weight.