So, I was looking through some of the pages of the KH Wiki, and on their page listing Keyblade wielders, they have a specific section for Keyblade Masters. Aqua was in there, obviously, but I saw that Terra was not. Now, as anyone who's played/watched BBS, they know by now that Terra, in Eraqus' point of view, failed the Qualification Exam, and was not made a Master. However, later on, even though it was for his own deeds and not exactly "proper," Master Xehanort deemed Terra a Master, and on multiple occasions as well.
So, would we consider Terra a real Master because of this? Though it was not official, the only reason Eraqus did not pass Terra was because Eraqus did not agree with darkness. Terra is well on par with the Masters, if not stronger.
As well, can we consider Sora a Master? Yes, it was only the Lingering Sentiment that deemed him so, but, Sora is quite strong enough to be on par with Masters, especially after all he's done. No, he does not have some of the Keyblade powers as the others do, but that's because he has not had formal enough training.
So, what do you guys think? Are Terra and Sora actual Masters?