When did this become a popularity contest? Obviously both of them will pass. And really? Riku deserves to be master more than Sora? I didn't know being a Master was judged by ones feats. -_-
It's not. Becoming a Master is judged by one's strength of heart. For example, Eraqus did not believe that Terra's heart was strong enough to suppress his inner darkness, so he was denied Mastery.