User blog comment:B214/Question and Answers/@comment-166.216.194.74-20131020224835/@comment-1392308-20131021032439

I meant that they are both stated to be equal within the story.

Durandal focuses solely on destructive force whereas Excaliber focuses more on technique. Kind of like Sirechz and Ajuka, both are considered the strongest Mao and probably close to being equals but have radically different fighting styles. Excaliber and Durandal are the same. They are equal as being two of the most poweful Holy Swords.