ANSWER:

The same way we understand how Allah favored prophet Mohammed salla Allahu alaihi wa sallam over all other prophets and messengers! 

This is only to Allah and He favors and prefers whatever He wills.

How do we understand Hadith that state that certain verses of the Quran are better than others, like the one in which the Prophet (saws) stated Ayat al Kursi is the best verse of the Quran when talking with a sahaba, since the entire Quran is the Kalaam of Allah