Since different people respond to diets differently, it would be pretty well impossible to prove that a higher protein diet is better than a high carb diet, especially once you factor in other conditions such as type of training done (strength training requires more protein for optimal results, endurance training requires more carbs for optimal results). Me, I do best with higher protein (25-35% of my calories), moderate fat and carbs, but that may not be the case for the next person. I'm much more carb-sensitive that some, so carbs are the knife in my back when it comes to fat loss, but are my friend for being able to take in enough calories when I'm training to get bigger/stronger. So, not only will individual details such as goals, training, etc. play into effect, but everyone also has to consider their individual differences of how they respond to certain macronutrient ratios as well.
Basically, there's no "perfect" diet for every person with every goal - diets should be tailored best around one's goals at the current time!
25-35% protein would mean about 50% carbs and 10-20% fat so that seems like a high carb diet not protien.
So your doing a high carb diet now then, I guess? You trying to gain weight? What has your results been with this diet so far?
Thanks for help,