This actually brings up somethign that has been bothering me. Who said most of the Creed lyrics were written by Mark? was it Mark or his brother? If it was his brother that makes sense--he is defending his brother and exaggerating in doing so. If it was Mark, that brings into question the validity of his other statements because he would be contradicting himself. I remember in an early interview, when explainign the new lyrics, he described them as being about everyone's lives, and that they weren't about the Bible the way Creed's lyrics were, because Mark "doesn't know the Bible".
Also, any average listener can just TELL the difference in AB's and Creed's lyrics. So I msut say that if Mark claimed to write %90 of Creed's lyrics... That would suck. Becuase that would mean he lied at least once.